Chemistry (CY) 2013 GATE Paper without solution | GATE Chemistry Mock Test Series PDF Download

 Page 1


2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 1/13
CY:CHEMISTRY 
 
Duration: Three Hours        Maximum Marks:100 
 
Please read the following instructions carefully: 
 
General Instructions: 
 
1. Total duration of examination is 180 minutes (3 hours).  
 
2. The clock will be set at the server.  The countdown timer in the top right corner of screen will display 
the remaining time available for you to complete the examination. When the timerreaches zero, the 
examinationwill end by itself. You will not be required to end or submit your examination.  
 
3. The Question Palettedisplayed on the right side of screen will show the status of each question using 
one of the following symbols:  
  
 
You have not visited the question yet. 
 
You have not answered the question. 
 
You have answered the question.  
 
You have NOT answered the question, but have marked the 
question for review. 
 
You have answered the question, but marked it for review.  
 
The Marked for Review status for a question simply indicates that you would like to look at that 
question again. If a question is answered and  Marked for Review, your answer for that question 
will be considered in the evaluation. 
 
Navigating to a Question 
 
4. To answer a question, do the following: 
a. Click on the question number in the Question Palette to go to that question directly.  
b. Select an answer for a multiple choice type question. Use the virtual numeric keypad to enter 
a number as answer for a numerical type question.  
c. Click on Save and Nexttosave your answer for the current question and then go to the next 
question.  
d. Click on Mark for Review and Nextto save your answer for the  currentquestion, mark it for 
review, and then go to the next question. 
e. Caution: Note that your answer for the current question will not be saved, if you 
navigate to another question directly by clicking on its question number.  
5. You can view all the questions by clicking on the Question Paper button.Note that the options for 
multiple choice type questions will not be shown.  
 
Answering a Question 
 
6. Procedure for answering a multiple choice type question: 
a. To select your answer, click on the button of one of  the options 
b. To deselect your chosen answer, click on the button of the chosen option again or click on the 
Clear Response button  
c. To change your chosen answer, click on the button of  another option 
d. To save your answer, you MUST click on the Save and Nextbutton 
Page 2


2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 1/13
CY:CHEMISTRY 
 
Duration: Three Hours        Maximum Marks:100 
 
Please read the following instructions carefully: 
 
General Instructions: 
 
1. Total duration of examination is 180 minutes (3 hours).  
 
2. The clock will be set at the server.  The countdown timer in the top right corner of screen will display 
the remaining time available for you to complete the examination. When the timerreaches zero, the 
examinationwill end by itself. You will not be required to end or submit your examination.  
 
3. The Question Palettedisplayed on the right side of screen will show the status of each question using 
one of the following symbols:  
  
 
You have not visited the question yet. 
 
You have not answered the question. 
 
You have answered the question.  
 
You have NOT answered the question, but have marked the 
question for review. 
 
You have answered the question, but marked it for review.  
 
The Marked for Review status for a question simply indicates that you would like to look at that 
question again. If a question is answered and  Marked for Review, your answer for that question 
will be considered in the evaluation. 
 
Navigating to a Question 
 
4. To answer a question, do the following: 
a. Click on the question number in the Question Palette to go to that question directly.  
b. Select an answer for a multiple choice type question. Use the virtual numeric keypad to enter 
a number as answer for a numerical type question.  
c. Click on Save and Nexttosave your answer for the current question and then go to the next 
question.  
d. Click on Mark for Review and Nextto save your answer for the  currentquestion, mark it for 
review, and then go to the next question. 
e. Caution: Note that your answer for the current question will not be saved, if you 
navigate to another question directly by clicking on its question number.  
5. You can view all the questions by clicking on the Question Paper button.Note that the options for 
multiple choice type questions will not be shown.  
 
Answering a Question 
 
6. Procedure for answering a multiple choice type question: 
a. To select your answer, click on the button of one of  the options 
b. To deselect your chosen answer, click on the button of the chosen option again or click on the 
Clear Response button  
c. To change your chosen answer, click on the button of  another option 
d. To save your answer, you MUST click on the Save and Nextbutton 
2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 2/13
e. To mark the question for review, click on the Mark for Review and Nextbutton. If an 
answer is selected for a question that is Marked for Review, that answer will be considered 
in the evaluation. 
 
7. Procedure for answering a numerical answer type question: 
a. To enter a number as your answer, use the virtual numerical keypad 
b. A fraction (eg.,-0.3 or -.3) can be entered as an answer with or without ‘0’ before the decimal 
point 
c. To clear your answer, click on the Clear Response button 
d. To save your answer, you MUST click on the Save and Nextbutton 
e. To mark the question for review, click on the Mark for Review and Nextbutton. If an 
answer is entered for a question that is Marked for Review, that answer will be considered 
in the evaluation. 
 
8. To change your answer to a question that has already been answered, first select that question for 
answering and then follow the procedure for answering that type of question.  
 
9. Note that ONLY Questions for which answers  are saved or marked for review after answering will be 
considered for evaluation. 
 
 
 
 
 
  
Page 3


2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 1/13
CY:CHEMISTRY 
 
Duration: Three Hours        Maximum Marks:100 
 
Please read the following instructions carefully: 
 
General Instructions: 
 
1. Total duration of examination is 180 minutes (3 hours).  
 
2. The clock will be set at the server.  The countdown timer in the top right corner of screen will display 
the remaining time available for you to complete the examination. When the timerreaches zero, the 
examinationwill end by itself. You will not be required to end or submit your examination.  
 
3. The Question Palettedisplayed on the right side of screen will show the status of each question using 
one of the following symbols:  
  
 
You have not visited the question yet. 
 
You have not answered the question. 
 
You have answered the question.  
 
You have NOT answered the question, but have marked the 
question for review. 
 
You have answered the question, but marked it for review.  
 
The Marked for Review status for a question simply indicates that you would like to look at that 
question again. If a question is answered and  Marked for Review, your answer for that question 
will be considered in the evaluation. 
 
Navigating to a Question 
 
4. To answer a question, do the following: 
a. Click on the question number in the Question Palette to go to that question directly.  
b. Select an answer for a multiple choice type question. Use the virtual numeric keypad to enter 
a number as answer for a numerical type question.  
c. Click on Save and Nexttosave your answer for the current question and then go to the next 
question.  
d. Click on Mark for Review and Nextto save your answer for the  currentquestion, mark it for 
review, and then go to the next question. 
e. Caution: Note that your answer for the current question will not be saved, if you 
navigate to another question directly by clicking on its question number.  
5. You can view all the questions by clicking on the Question Paper button.Note that the options for 
multiple choice type questions will not be shown.  
 
Answering a Question 
 
6. Procedure for answering a multiple choice type question: 
a. To select your answer, click on the button of one of  the options 
b. To deselect your chosen answer, click on the button of the chosen option again or click on the 
Clear Response button  
c. To change your chosen answer, click on the button of  another option 
d. To save your answer, you MUST click on the Save and Nextbutton 
2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 2/13
e. To mark the question for review, click on the Mark for Review and Nextbutton. If an 
answer is selected for a question that is Marked for Review, that answer will be considered 
in the evaluation. 
 
7. Procedure for answering a numerical answer type question: 
a. To enter a number as your answer, use the virtual numerical keypad 
b. A fraction (eg.,-0.3 or -.3) can be entered as an answer with or without ‘0’ before the decimal 
point 
c. To clear your answer, click on the Clear Response button 
d. To save your answer, you MUST click on the Save and Nextbutton 
e. To mark the question for review, click on the Mark for Review and Nextbutton. If an 
answer is entered for a question that is Marked for Review, that answer will be considered 
in the evaluation. 
 
8. To change your answer to a question that has already been answered, first select that question for 
answering and then follow the procedure for answering that type of question.  
 
9. Note that ONLY Questions for which answers  are saved or marked for review after answering will be 
considered for evaluation. 
 
 
 
 
 
  
2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 3/13
Paper specific instructions: 
 
 
1. There are a total of 65 questions carrying 100 marks.Questions are of multiple choice type or 
numerical answer type. A multiple choice type question will have four choices for the answer with 
only one correct choice. For numerical answer type questions, the answer is a number and no choices 
will be given. A number as the answer should be entered using the virtual keyboard on the monitor. 
 
2. Questions Q.1 – Q.25 carry 1mark each. Questions Q.26 – Q.55 carry 2marks each. The 2marks 
questions include two pairs of common data questions and two pairs of linked answer questions. The 
answer to the second question of the linked answer questions depends on the answer to the first 
question of the pair. If the first question in the linked pair is wrongly answered or is not attempted, 
then the answer to the second question in the pair will not be evaluated. 
 
3. Questions Q.56 – Q.65 belong to General Aptitude (GA) section and carry a total of 15 marks. 
Questions Q.56 – Q.60 carry 1mark each, and questions Q.61 – Q.65 carry 2marks each.   
 
4. Questions not attempted will result in zero mark. Wrong answers for multiple choice type questions 
will result in NEGATIVE marks.  For all 1 mark questions, ? mark will be deducted for each wrong 
answer. For all 2 marks questions, ? mark will be deducted for each wrong answer.  However, in the 
case of the linked answer question pair, there will be negative marks only for wrong answer to the 
first question and no negative marks for wrong answer to the second question. There is no negative 
marking for questions of numerical answer type. 
 
5. Calculator is allowed. Charts, graph sheets or tables are NOT allowed in the examination hall.  
 
6. Do the rough work in the Scribble Pad provided. 
 
USEFUL DATA - CY CHEMISTRY 
 
COMMON DATA 
 
Planck constant : 6.626 × 10
–34
 J s 
Avogadro number : 6.022 × 10
23
mol
–1 
Speed of light  : 3 × 10
8
 m s
–1
 
Gas constant  : 8.314 J K
–1
mol
–1
 
: 0.08314 L bar K
–1
mol
–1
 
: 2 cal K
–1
mol
–1
 
Boltzmann constant : 1.38 × 10
–23
 J K
–1
 
Faraday constant : 96500 Cmol
–1 
?   : 3.14 
Trouton’s rule : ?S
vap
 = 87 J K
–1
mol
–1
 
Atomic Numbers:  
Ca  : 20 
V  : 23 
Cr  : 24 
Mn  : 25 
Fe   : 26 
Mo  : 42 
Xe  : 54 
Rn  : 86 
  
Page 4


2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 1/13
CY:CHEMISTRY 
 
Duration: Three Hours        Maximum Marks:100 
 
Please read the following instructions carefully: 
 
General Instructions: 
 
1. Total duration of examination is 180 minutes (3 hours).  
 
2. The clock will be set at the server.  The countdown timer in the top right corner of screen will display 
the remaining time available for you to complete the examination. When the timerreaches zero, the 
examinationwill end by itself. You will not be required to end or submit your examination.  
 
3. The Question Palettedisplayed on the right side of screen will show the status of each question using 
one of the following symbols:  
  
 
You have not visited the question yet. 
 
You have not answered the question. 
 
You have answered the question.  
 
You have NOT answered the question, but have marked the 
question for review. 
 
You have answered the question, but marked it for review.  
 
The Marked for Review status for a question simply indicates that you would like to look at that 
question again. If a question is answered and  Marked for Review, your answer for that question 
will be considered in the evaluation. 
 
Navigating to a Question 
 
4. To answer a question, do the following: 
a. Click on the question number in the Question Palette to go to that question directly.  
b. Select an answer for a multiple choice type question. Use the virtual numeric keypad to enter 
a number as answer for a numerical type question.  
c. Click on Save and Nexttosave your answer for the current question and then go to the next 
question.  
d. Click on Mark for Review and Nextto save your answer for the  currentquestion, mark it for 
review, and then go to the next question. 
e. Caution: Note that your answer for the current question will not be saved, if you 
navigate to another question directly by clicking on its question number.  
5. You can view all the questions by clicking on the Question Paper button.Note that the options for 
multiple choice type questions will not be shown.  
 
Answering a Question 
 
6. Procedure for answering a multiple choice type question: 
a. To select your answer, click on the button of one of  the options 
b. To deselect your chosen answer, click on the button of the chosen option again or click on the 
Clear Response button  
c. To change your chosen answer, click on the button of  another option 
d. To save your answer, you MUST click on the Save and Nextbutton 
2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 2/13
e. To mark the question for review, click on the Mark for Review and Nextbutton. If an 
answer is selected for a question that is Marked for Review, that answer will be considered 
in the evaluation. 
 
7. Procedure for answering a numerical answer type question: 
a. To enter a number as your answer, use the virtual numerical keypad 
b. A fraction (eg.,-0.3 or -.3) can be entered as an answer with or without ‘0’ before the decimal 
point 
c. To clear your answer, click on the Clear Response button 
d. To save your answer, you MUST click on the Save and Nextbutton 
e. To mark the question for review, click on the Mark for Review and Nextbutton. If an 
answer is entered for a question that is Marked for Review, that answer will be considered 
in the evaluation. 
 
8. To change your answer to a question that has already been answered, first select that question for 
answering and then follow the procedure for answering that type of question.  
 
9. Note that ONLY Questions for which answers  are saved or marked for review after answering will be 
considered for evaluation. 
 
 
 
 
 
  
2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 3/13
Paper specific instructions: 
 
 
1. There are a total of 65 questions carrying 100 marks.Questions are of multiple choice type or 
numerical answer type. A multiple choice type question will have four choices for the answer with 
only one correct choice. For numerical answer type questions, the answer is a number and no choices 
will be given. A number as the answer should be entered using the virtual keyboard on the monitor. 
 
2. Questions Q.1 – Q.25 carry 1mark each. Questions Q.26 – Q.55 carry 2marks each. The 2marks 
questions include two pairs of common data questions and two pairs of linked answer questions. The 
answer to the second question of the linked answer questions depends on the answer to the first 
question of the pair. If the first question in the linked pair is wrongly answered or is not attempted, 
then the answer to the second question in the pair will not be evaluated. 
 
3. Questions Q.56 – Q.65 belong to General Aptitude (GA) section and carry a total of 15 marks. 
Questions Q.56 – Q.60 carry 1mark each, and questions Q.61 – Q.65 carry 2marks each.   
 
4. Questions not attempted will result in zero mark. Wrong answers for multiple choice type questions 
will result in NEGATIVE marks.  For all 1 mark questions, ? mark will be deducted for each wrong 
answer. For all 2 marks questions, ? mark will be deducted for each wrong answer.  However, in the 
case of the linked answer question pair, there will be negative marks only for wrong answer to the 
first question and no negative marks for wrong answer to the second question. There is no negative 
marking for questions of numerical answer type. 
 
5. Calculator is allowed. Charts, graph sheets or tables are NOT allowed in the examination hall.  
 
6. Do the rough work in the Scribble Pad provided. 
 
USEFUL DATA - CY CHEMISTRY 
 
COMMON DATA 
 
Planck constant : 6.626 × 10
–34
 J s 
Avogadro number : 6.022 × 10
23
mol
–1 
Speed of light  : 3 × 10
8
 m s
–1
 
Gas constant  : 8.314 J K
–1
mol
–1
 
: 0.08314 L bar K
–1
mol
–1
 
: 2 cal K
–1
mol
–1
 
Boltzmann constant : 1.38 × 10
–23
 J K
–1
 
Faraday constant : 96500 Cmol
–1 
?   : 3.14 
Trouton’s rule : ?S
vap
 = 87 J K
–1
mol
–1
 
Atomic Numbers:  
Ca  : 20 
V  : 23 
Cr  : 24 
Mn  : 25 
Fe   : 26 
Mo  : 42 
Xe  : 54 
Rn  : 86 
  
2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 4/13
Q. 1 – Q. 25carry one mark each. 
Q.1 The point group symmetry ofCH
2
=C=CH
2
 is 
(A)  D
2h
 (B)  C
2h
 (C)  C
2v
 (D)   D
2d
 
 
Q.2 Two trial wave functions ? ?
1 1
c x a x ? ? ? and ? ? ? ?
2
2
2 1 2
c x a x c x a x ? ? ? ? ? give ground state 
energies E
1
 and E
2
, respectively, for themicroscopic particle in a 1-D boxby using the variation 
method. If the exact ground state energy is E
0
, the correct relationship between E
0
, E
1
 and E
2
 is 
(A) E
0
 = E
1
 = E
2
 (B) E
0
< E
1
< E
2
 (C) E
0
< E
2
< E
1
 (D) E
0
> E
2
 = E
1
 
 
Q.3 The ground state energies of H atom and H
2
 molecule are –13.6 eV and –31.7 eV, respectively. The 
dissociation energy of H
2
 is _______  eV. 
Q.4 A 2 L vessel containing 2 g of H
2
gas at 27 °C is connected to a 2 L vessel containing 176 g of CO
2
 
gas at 27 °C. Assuming ideal behavior of H
2
 and CO
2
, the partial pressure of H
2
 at equilibrium is 
________ bar.  
Q.5 
Consider the reaction ? ? ? ? ? ?
2
2 2 C s O g CO g ?
? ? ?
? ? ?
at equilibrium. 
The equilibrium can be shifted towards the forward direction by 
(A) increasing the amount of carbon in the system. 
(B) decreasing the volume of the system. 
(C) decreasing the pressure of the system. 
(D) increasing the temperature of the system. 
 
Q.6 A sparingly soluble electrolyte M
2
X ionizes as
2
2
2 M X M X
? ?
?
? ? ?
? ? ?
 
The solubility product (K
sp
), molal solubility (S) and mean molal activity coefficient ( ?
?
) are related 
by  
(A) 
2 2
SP
K S ?
?
? (B) 
3 3
SP
K S ?
?
? (C) 
3 2
4
SP
K S ?
?
? (D) 
3 3
4
SP
K S ?
?
? 
 
Q.7 For the first order consecutive reaction P ? Q ? R, 
under steady state approximation to [Q], the variations of [P], [Q] and [R] with timeare best 
represented by  
(A) 
 
(B) 
 
(C)  
 
(D)   
 
 
Q.8 At 273 K and 10 bar,the Langmuir adsorption of a gas on a solid surface gave the fraction of 
surface coverage as0.01. The Langmuir adsorption isotherm constant is _________ bar
–1
. 
(Give the answer to the third decimal place) 
Q.9 Conversion of boron trifluoride to tetrafluoroborate accompanies 
(A) increase in symmetry and bond elongation 
(B) increase in symmetry and bond contraction 
(C) decrease in symmetry and bond contraction 
(D) decrease in symmetry and bond elongation 
 
Page 5


2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 1/13
CY:CHEMISTRY 
 
Duration: Three Hours        Maximum Marks:100 
 
Please read the following instructions carefully: 
 
General Instructions: 
 
1. Total duration of examination is 180 minutes (3 hours).  
 
2. The clock will be set at the server.  The countdown timer in the top right corner of screen will display 
the remaining time available for you to complete the examination. When the timerreaches zero, the 
examinationwill end by itself. You will not be required to end or submit your examination.  
 
3. The Question Palettedisplayed on the right side of screen will show the status of each question using 
one of the following symbols:  
  
 
You have not visited the question yet. 
 
You have not answered the question. 
 
You have answered the question.  
 
You have NOT answered the question, but have marked the 
question for review. 
 
You have answered the question, but marked it for review.  
 
The Marked for Review status for a question simply indicates that you would like to look at that 
question again. If a question is answered and  Marked for Review, your answer for that question 
will be considered in the evaluation. 
 
Navigating to a Question 
 
4. To answer a question, do the following: 
a. Click on the question number in the Question Palette to go to that question directly.  
b. Select an answer for a multiple choice type question. Use the virtual numeric keypad to enter 
a number as answer for a numerical type question.  
c. Click on Save and Nexttosave your answer for the current question and then go to the next 
question.  
d. Click on Mark for Review and Nextto save your answer for the  currentquestion, mark it for 
review, and then go to the next question. 
e. Caution: Note that your answer for the current question will not be saved, if you 
navigate to another question directly by clicking on its question number.  
5. You can view all the questions by clicking on the Question Paper button.Note that the options for 
multiple choice type questions will not be shown.  
 
Answering a Question 
 
6. Procedure for answering a multiple choice type question: 
a. To select your answer, click on the button of one of  the options 
b. To deselect your chosen answer, click on the button of the chosen option again or click on the 
Clear Response button  
c. To change your chosen answer, click on the button of  another option 
d. To save your answer, you MUST click on the Save and Nextbutton 
2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 2/13
e. To mark the question for review, click on the Mark for Review and Nextbutton. If an 
answer is selected for a question that is Marked for Review, that answer will be considered 
in the evaluation. 
 
7. Procedure for answering a numerical answer type question: 
a. To enter a number as your answer, use the virtual numerical keypad 
b. A fraction (eg.,-0.3 or -.3) can be entered as an answer with or without ‘0’ before the decimal 
point 
c. To clear your answer, click on the Clear Response button 
d. To save your answer, you MUST click on the Save and Nextbutton 
e. To mark the question for review, click on the Mark for Review and Nextbutton. If an 
answer is entered for a question that is Marked for Review, that answer will be considered 
in the evaluation. 
 
8. To change your answer to a question that has already been answered, first select that question for 
answering and then follow the procedure for answering that type of question.  
 
9. Note that ONLY Questions for which answers  are saved or marked for review after answering will be 
considered for evaluation. 
 
 
 
 
 
  
2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 3/13
Paper specific instructions: 
 
 
1. There are a total of 65 questions carrying 100 marks.Questions are of multiple choice type or 
numerical answer type. A multiple choice type question will have four choices for the answer with 
only one correct choice. For numerical answer type questions, the answer is a number and no choices 
will be given. A number as the answer should be entered using the virtual keyboard on the monitor. 
 
2. Questions Q.1 – Q.25 carry 1mark each. Questions Q.26 – Q.55 carry 2marks each. The 2marks 
questions include two pairs of common data questions and two pairs of linked answer questions. The 
answer to the second question of the linked answer questions depends on the answer to the first 
question of the pair. If the first question in the linked pair is wrongly answered or is not attempted, 
then the answer to the second question in the pair will not be evaluated. 
 
3. Questions Q.56 – Q.65 belong to General Aptitude (GA) section and carry a total of 15 marks. 
Questions Q.56 – Q.60 carry 1mark each, and questions Q.61 – Q.65 carry 2marks each.   
 
4. Questions not attempted will result in zero mark. Wrong answers for multiple choice type questions 
will result in NEGATIVE marks.  For all 1 mark questions, ? mark will be deducted for each wrong 
answer. For all 2 marks questions, ? mark will be deducted for each wrong answer.  However, in the 
case of the linked answer question pair, there will be negative marks only for wrong answer to the 
first question and no negative marks for wrong answer to the second question. There is no negative 
marking for questions of numerical answer type. 
 
5. Calculator is allowed. Charts, graph sheets or tables are NOT allowed in the examination hall.  
 
6. Do the rough work in the Scribble Pad provided. 
 
USEFUL DATA - CY CHEMISTRY 
 
COMMON DATA 
 
Planck constant : 6.626 × 10
–34
 J s 
Avogadro number : 6.022 × 10
23
mol
–1 
Speed of light  : 3 × 10
8
 m s
–1
 
Gas constant  : 8.314 J K
–1
mol
–1
 
: 0.08314 L bar K
–1
mol
–1
 
: 2 cal K
–1
mol
–1
 
Boltzmann constant : 1.38 × 10
–23
 J K
–1
 
Faraday constant : 96500 Cmol
–1 
?   : 3.14 
Trouton’s rule : ?S
vap
 = 87 J K
–1
mol
–1
 
Atomic Numbers:  
Ca  : 20 
V  : 23 
Cr  : 24 
Mn  : 25 
Fe   : 26 
Mo  : 42 
Xe  : 54 
Rn  : 86 
  
2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 4/13
Q. 1 – Q. 25carry one mark each. 
Q.1 The point group symmetry ofCH
2
=C=CH
2
 is 
(A)  D
2h
 (B)  C
2h
 (C)  C
2v
 (D)   D
2d
 
 
Q.2 Two trial wave functions ? ?
1 1
c x a x ? ? ? and ? ? ? ?
2
2
2 1 2
c x a x c x a x ? ? ? ? ? give ground state 
energies E
1
 and E
2
, respectively, for themicroscopic particle in a 1-D boxby using the variation 
method. If the exact ground state energy is E
0
, the correct relationship between E
0
, E
1
 and E
2
 is 
(A) E
0
 = E
1
 = E
2
 (B) E
0
< E
1
< E
2
 (C) E
0
< E
2
< E
1
 (D) E
0
> E
2
 = E
1
 
 
Q.3 The ground state energies of H atom and H
2
 molecule are –13.6 eV and –31.7 eV, respectively. The 
dissociation energy of H
2
 is _______  eV. 
Q.4 A 2 L vessel containing 2 g of H
2
gas at 27 °C is connected to a 2 L vessel containing 176 g of CO
2
 
gas at 27 °C. Assuming ideal behavior of H
2
 and CO
2
, the partial pressure of H
2
 at equilibrium is 
________ bar.  
Q.5 
Consider the reaction ? ? ? ? ? ?
2
2 2 C s O g CO g ?
? ? ?
? ? ?
at equilibrium. 
The equilibrium can be shifted towards the forward direction by 
(A) increasing the amount of carbon in the system. 
(B) decreasing the volume of the system. 
(C) decreasing the pressure of the system. 
(D) increasing the temperature of the system. 
 
Q.6 A sparingly soluble electrolyte M
2
X ionizes as
2
2
2 M X M X
? ?
?
? ? ?
? ? ?
 
The solubility product (K
sp
), molal solubility (S) and mean molal activity coefficient ( ?
?
) are related 
by  
(A) 
2 2
SP
K S ?
?
? (B) 
3 3
SP
K S ?
?
? (C) 
3 2
4
SP
K S ?
?
? (D) 
3 3
4
SP
K S ?
?
? 
 
Q.7 For the first order consecutive reaction P ? Q ? R, 
under steady state approximation to [Q], the variations of [P], [Q] and [R] with timeare best 
represented by  
(A) 
 
(B) 
 
(C)  
 
(D)   
 
 
Q.8 At 273 K and 10 bar,the Langmuir adsorption of a gas on a solid surface gave the fraction of 
surface coverage as0.01. The Langmuir adsorption isotherm constant is _________ bar
–1
. 
(Give the answer to the third decimal place) 
Q.9 Conversion of boron trifluoride to tetrafluoroborate accompanies 
(A) increase in symmetry and bond elongation 
(B) increase in symmetry and bond contraction 
(C) decrease in symmetry and bond contraction 
(D) decrease in symmetry and bond elongation 
 
2013                                                                                                                                                                                                      CHEMISTRY–  CY 
CY 5/13
Q.10 The correct statement with respect to the bonding of the ligands, Me
3
N and Me
3
P with the metal 
ions Be
2+
 and Pd
2+
 is,  
(A) the ligands bind equally strong with both the metal ions as they are dicationic 
(B) the ligands bind equally strong with both the metal ions as both the ligands are pyramidal 
(C) the binding is stronger for Me
3
N with Be
2+
 and Me
3
P with Pd
2+
 
(D) the binding is stronger for Me
3
N with Pd
2+ 
and Me
3
P with Be
2+
 
 
Q.11 A crystal has the lattice parameters a ? b ? c and ? ?= ? ?= ? ?= 90
o
. The crystal system is 
(A)  tetragonal (B)  monoclinic (C)   cubic (D)   orthorhombic 
 
Q.12 The by-product formed in the characteristic reaction of (CO)
5
Cr=C(OMe)(Me) with MeNH
2
 is 
(A)  CO (B)  MeOH (C)   MeCHO (D)   MeCONH
2 
 
Q.13 The catalyst and co-catalyst used in the Wacker process, respectively, are 
(A) PdCl
2
and Cu (B) CuCl
2
and [PdCl
4
]
2–
 
(C) Pdand CuCl (D) [PdCl
4
]
2–
and CuCl
2
 
 
Q.14 Oxymyoglobin Mb(O
2
) and oxyhemoglobinHb(O
2
)
4
, respectively, are 
(A) paramagnetic and paramagnetic (B) diamagnetic and diamagnetic 
(C) paramagnetic anddiamagnetic (D) diamagnetic and paramagnetic 
 
Q.15 Hapticity of cycloheptatrienein Mo(C
7
H
8
)(CO)
3
is   _______. 
 
Q.16 The number of oxygen molecule(s) that a molecule of hemerythrin can transport is _______. 
Q.17 The maximum number of stereoisomers possible for the compound given below is _____. 
   
Me
NO
2
NO
2
Me
Me
O
 
Q.18 The correct sequence of the amino acids present in the tripeptide given below is 
  
H
2
N
H
N
N
H
OH
Me Me
O
OH
O
Me
OH
O
 
(A)  Val-Ser-Thr (B)  Val-Thr-Ser (C)   Leu-Ser-Thr (D)   Leu-Thr-Ser 
 
Q.19 Among the compounds given in the options A-D, the one that can be used as a formyl anion 
equivalent (in the presence of a strong base) is 
(A)  ethylene (B)  nitroethane (C)   1,3-dithiane (D)   1,4-dithiane