IIT JAM Exam  >  IIT JAM Notes  >  Additional Documents & Tests for IIT JAM  >  Chemical Bonding Online test as a assignmnet

Chemical Bonding Online test as a assignmnet | Additional Documents & Tests for IIT JAM PDF Download

Download, print and study this document offline
Please wait while the PDF view is loading
 Page 1


 
2637, Hudson Lane, Behind Khalsa College, Near G.T.B. Nagar Metro Station Gate No. 3 & 4, New Delhi – 110009 
Mob. 011-47455430, 08860929430, e-mail: info@asfinstitute.com, www.asfinstitute.com 
Chemical Bonding & Solid State Online Test (26
th
, Dec/16) 
1. The number of peroxide linkages and oxidation state of Cr in CrO
5
: 
 (a) 2, +6  (b) 1, +6  (c) 1, +8  (d) 2, +8 
2. The correct structure of [P(C
3
H
5
)
2
(CH
3
)
3
] is: 
 (a)    (b) 
CH
3
CH
3
H
3
C P
 
 (c)    (d) 
 
3. Increasing order of bond angle of: 
 (a) Cl
2
O < ClO
2
 < Cl
2
O
7
 < I
3
-
   (b) Cl
2
O < ClO
2
 < I
3
-
 < Cl
2
O
7
  
 (c) I
-
3
 < Cl
2
O
7
 < ClO
2
 < Cl
2
O   (d) Cl
2
O <  Cl
2
O
7 
< ClO
2
 < I
3
- 
4. Which of the following species are all the bonds not equal: 
 (a) SF
4
   (b) SiF
4
  (c) XeF
4
  (d) BF
4
- 
5. Which of the following species has two non-bonded electron pairs on the central atom: 
 (a) TeCl
4
  (b) ClF
3
  (c) ICl
2
   (d) PCl
3
  
6. In the MO configuration of XeF
2
, how many pairs are present in BMO, NBO, ABMO, 
respectively: 
 (a) 2, 0, 2  (b) 2, 1, 1  (c) 2, 2, 0  (d) 1, 2, 1 
7. In which of following C-C bond length will be longest: 
 (a) CH
3
–CF
3
  (b) FCH
2
–CH
2
F (c) F
2
CH–CHF
2
 (d) CF
3
–CF
3 
8. The correct order of bond strength: 
 (I) H–F > H–H > F–F    (II) N–N < P–P  
 (III) As–F > P–F > N–F   (IV) P–O > As–O > N–O 
 (a) I, II, III  (b) II, III, IV  (c) I, III, IV  (d) I, II, IV 
9. The probable state of hybridization for the transition state of hydrolysis mechanism of BCl
3
 and 
SF
4
 respectively: 
 (a) sp
2
, sp
3
d  (b) sp
3
, sp
3
  (c) sp
3
, sp
3
d
2  
(d) sp
3
, sp
3
d 
Page 2


 
2637, Hudson Lane, Behind Khalsa College, Near G.T.B. Nagar Metro Station Gate No. 3 & 4, New Delhi – 110009 
Mob. 011-47455430, 08860929430, e-mail: info@asfinstitute.com, www.asfinstitute.com 
Chemical Bonding & Solid State Online Test (26
th
, Dec/16) 
1. The number of peroxide linkages and oxidation state of Cr in CrO
5
: 
 (a) 2, +6  (b) 1, +6  (c) 1, +8  (d) 2, +8 
2. The correct structure of [P(C
3
H
5
)
2
(CH
3
)
3
] is: 
 (a)    (b) 
CH
3
CH
3
H
3
C P
 
 (c)    (d) 
 
3. Increasing order of bond angle of: 
 (a) Cl
2
O < ClO
2
 < Cl
2
O
7
 < I
3
-
   (b) Cl
2
O < ClO
2
 < I
3
-
 < Cl
2
O
7
  
 (c) I
-
3
 < Cl
2
O
7
 < ClO
2
 < Cl
2
O   (d) Cl
2
O <  Cl
2
O
7 
< ClO
2
 < I
3
- 
4. Which of the following species are all the bonds not equal: 
 (a) SF
4
   (b) SiF
4
  (c) XeF
4
  (d) BF
4
- 
5. Which of the following species has two non-bonded electron pairs on the central atom: 
 (a) TeCl
4
  (b) ClF
3
  (c) ICl
2
   (d) PCl
3
  
6. In the MO configuration of XeF
2
, how many pairs are present in BMO, NBO, ABMO, 
respectively: 
 (a) 2, 0, 2  (b) 2, 1, 1  (c) 2, 2, 0  (d) 1, 2, 1 
7. In which of following C-C bond length will be longest: 
 (a) CH
3
–CF
3
  (b) FCH
2
–CH
2
F (c) F
2
CH–CHF
2
 (d) CF
3
–CF
3 
8. The correct order of bond strength: 
 (I) H–F > H–H > F–F    (II) N–N < P–P  
 (III) As–F > P–F > N–F   (IV) P–O > As–O > N–O 
 (a) I, II, III  (b) II, III, IV  (c) I, III, IV  (d) I, II, IV 
9. The probable state of hybridization for the transition state of hydrolysis mechanism of BCl
3
 and 
SF
4
 respectively: 
 (a) sp
2
, sp
3
d  (b) sp
3
, sp
3
  (c) sp
3
, sp
3
d
2  
(d) sp
3
, sp
3
d 
 
2637, Hudson Lane, Behind Khalsa College, Near G.T.B. Nagar Metro Station Gate No. 3 & 4, New Delhi – 110009 
Mob. 011-47455430, 08860929430, e-mail: info@asfinstitute.com, www.asfinstitute.com 
10. Band theory predicts that magnesium is an insulator. However, in practice it act as a conductor 
due to: 
 (a) Presence of filled 3s-orbital   (b) Overlap of filled 2p and filled 3s-orbital. 
 (c) Overlap of filled 3s and empty 3p-orbital.(d) Pressure of unfilled 3p-orbital. 
11. The number of nodal plane in p antibonding molecular orbital of acetylene: 
 (a) 2   (b) 1   (c) 0   (d) 3  
12. The shape and hybridization of KrF
2
 is: 
 (a) Trigonal bipyramidal ; sp
3
d  (b) Square pyramidal ; dsp
3
 
 (c) Linear ; sp
3
d    (d) Linear ; sp
2
d 
13. Number of second neighbours atom in SC, BCC & FCC respectively are: 
 (a) 6, 8, 12  (b) 12, 6, 6  (c) 6, 6, 12  (d) 6, 12, 6   
14. The bond order for N
2
, O
2
, N
2
–
, O
2
–
 varies as: 
 (a) N
2
 > N
2
–
 > O
2
 > O
2
–
   (b) N
2
 > O
2
 > N
2
–
 > O
2
–
 
 (c) O
2
 > N
2
 > O
2
–
 > N
2
–
   (d) N
2
–
 > N
2
 > O
2
–
 > O
2
 
15. Iron (II) Oxide, FeO, crystal has a cubic structure and each edge of the number cell is 5.0 Å. 
Density of the oxide is 4.0 g cm
–3
. Number of Fe
2+
 and O
2–
 ions present in each cell will be: 
 (a) One Fe
2+
 ions and one O
2–
 ions.  (b) Two Fe
2+
 ions and two O
2–
 ions. 
 (c) Three Fe
2+
 ions and three O
2–
 ions. (d) Four Fe
2+
 ions and four O
2–
 ions. 
16. Which one of the following statements is correct: 
 (a) Frenkel defect is a cation vacancy and a cation interstitial. 
 (b) Frenkel defect is anion vacancy and a cation interstitial. 
 (c) Density of solid remains unchanged in case of Frenkel defects. 
 (d) Density of a solid decrease in case of  Schottky defects. 
17. The incorrect statement among the following is: 
 (a) N
2
 has higher bond order than N
2
+
 has hence has larger bond length compared to N
2
+
. 
 (b) N
2
+
 has higher bond order than N
2
 and has larger bond length compared to N
2
. 
(c) N
2
 has higher bond order than N
2
+
 and hence has higher dissociation energy compared to N
2
+
. 
(d) N
2
 has lower bond order than N
2
+
 and hence has lower dissociation energy compared to N
2
+
 
energy. 
18. In which one of the following pairs, molecules have different shape: 
 (a) 
5 5
SiF and PCl
?
 (b) 
4 4
ICl and XeF
?
 (c) 
2
4 4
SO and SF
?
 (d) 
4 4
AsF and XeF
?
 
Page 3


 
2637, Hudson Lane, Behind Khalsa College, Near G.T.B. Nagar Metro Station Gate No. 3 & 4, New Delhi – 110009 
Mob. 011-47455430, 08860929430, e-mail: info@asfinstitute.com, www.asfinstitute.com 
Chemical Bonding & Solid State Online Test (26
th
, Dec/16) 
1. The number of peroxide linkages and oxidation state of Cr in CrO
5
: 
 (a) 2, +6  (b) 1, +6  (c) 1, +8  (d) 2, +8 
2. The correct structure of [P(C
3
H
5
)
2
(CH
3
)
3
] is: 
 (a)    (b) 
CH
3
CH
3
H
3
C P
 
 (c)    (d) 
 
3. Increasing order of bond angle of: 
 (a) Cl
2
O < ClO
2
 < Cl
2
O
7
 < I
3
-
   (b) Cl
2
O < ClO
2
 < I
3
-
 < Cl
2
O
7
  
 (c) I
-
3
 < Cl
2
O
7
 < ClO
2
 < Cl
2
O   (d) Cl
2
O <  Cl
2
O
7 
< ClO
2
 < I
3
- 
4. Which of the following species are all the bonds not equal: 
 (a) SF
4
   (b) SiF
4
  (c) XeF
4
  (d) BF
4
- 
5. Which of the following species has two non-bonded electron pairs on the central atom: 
 (a) TeCl
4
  (b) ClF
3
  (c) ICl
2
   (d) PCl
3
  
6. In the MO configuration of XeF
2
, how many pairs are present in BMO, NBO, ABMO, 
respectively: 
 (a) 2, 0, 2  (b) 2, 1, 1  (c) 2, 2, 0  (d) 1, 2, 1 
7. In which of following C-C bond length will be longest: 
 (a) CH
3
–CF
3
  (b) FCH
2
–CH
2
F (c) F
2
CH–CHF
2
 (d) CF
3
–CF
3 
8. The correct order of bond strength: 
 (I) H–F > H–H > F–F    (II) N–N < P–P  
 (III) As–F > P–F > N–F   (IV) P–O > As–O > N–O 
 (a) I, II, III  (b) II, III, IV  (c) I, III, IV  (d) I, II, IV 
9. The probable state of hybridization for the transition state of hydrolysis mechanism of BCl
3
 and 
SF
4
 respectively: 
 (a) sp
2
, sp
3
d  (b) sp
3
, sp
3
  (c) sp
3
, sp
3
d
2  
(d) sp
3
, sp
3
d 
 
2637, Hudson Lane, Behind Khalsa College, Near G.T.B. Nagar Metro Station Gate No. 3 & 4, New Delhi – 110009 
Mob. 011-47455430, 08860929430, e-mail: info@asfinstitute.com, www.asfinstitute.com 
10. Band theory predicts that magnesium is an insulator. However, in practice it act as a conductor 
due to: 
 (a) Presence of filled 3s-orbital   (b) Overlap of filled 2p and filled 3s-orbital. 
 (c) Overlap of filled 3s and empty 3p-orbital.(d) Pressure of unfilled 3p-orbital. 
11. The number of nodal plane in p antibonding molecular orbital of acetylene: 
 (a) 2   (b) 1   (c) 0   (d) 3  
12. The shape and hybridization of KrF
2
 is: 
 (a) Trigonal bipyramidal ; sp
3
d  (b) Square pyramidal ; dsp
3
 
 (c) Linear ; sp
3
d    (d) Linear ; sp
2
d 
13. Number of second neighbours atom in SC, BCC & FCC respectively are: 
 (a) 6, 8, 12  (b) 12, 6, 6  (c) 6, 6, 12  (d) 6, 12, 6   
14. The bond order for N
2
, O
2
, N
2
–
, O
2
–
 varies as: 
 (a) N
2
 > N
2
–
 > O
2
 > O
2
–
   (b) N
2
 > O
2
 > N
2
–
 > O
2
–
 
 (c) O
2
 > N
2
 > O
2
–
 > N
2
–
   (d) N
2
–
 > N
2
 > O
2
–
 > O
2
 
15. Iron (II) Oxide, FeO, crystal has a cubic structure and each edge of the number cell is 5.0 Å. 
Density of the oxide is 4.0 g cm
–3
. Number of Fe
2+
 and O
2–
 ions present in each cell will be: 
 (a) One Fe
2+
 ions and one O
2–
 ions.  (b) Two Fe
2+
 ions and two O
2–
 ions. 
 (c) Three Fe
2+
 ions and three O
2–
 ions. (d) Four Fe
2+
 ions and four O
2–
 ions. 
16. Which one of the following statements is correct: 
 (a) Frenkel defect is a cation vacancy and a cation interstitial. 
 (b) Frenkel defect is anion vacancy and a cation interstitial. 
 (c) Density of solid remains unchanged in case of Frenkel defects. 
 (d) Density of a solid decrease in case of  Schottky defects. 
17. The incorrect statement among the following is: 
 (a) N
2
 has higher bond order than N
2
+
 has hence has larger bond length compared to N
2
+
. 
 (b) N
2
+
 has higher bond order than N
2
 and has larger bond length compared to N
2
. 
(c) N
2
 has higher bond order than N
2
+
 and hence has higher dissociation energy compared to N
2
+
. 
(d) N
2
 has lower bond order than N
2
+
 and hence has lower dissociation energy compared to N
2
+
 
energy. 
18. In which one of the following pairs, molecules have different shape: 
 (a) 
5 5
SiF and PCl
?
 (b) 
4 4
ICl and XeF
?
 (c) 
2
4 4
SO and SF
?
 (d) 
4 4
AsF and XeF
?
 
 
2637, Hudson Lane, Behind Khalsa College, Near G.T.B. Nagar Metro Station Gate No. 3 & 4, New Delhi – 110009 
Mob. 011-47455430, 08860929430, e-mail: info@asfinstitute.com, www.asfinstitute.com 
19. The number of lone pair are different in the pair: 
 (a) 
4 3
XeF ;ClF  (b) 
4 4
XeO ;ICl
?
 (c) 
2 2 4
XeO F ;ICl
?
 (d) 
4 3
XeO ;ClF  
20. Which of the following statement (s) is/are correct: 
 (a) Bond – length of CO
+
 is shorter than CO.  
 (b) Bond – length of CO
+
 is longer than CO. 
 (c) Both CO
+
 and CO has equal bond length. 
 (d) Bond order of CO
+
 is greater than CO.   
21. The number of fully planar molecules among I
3
+
. I
3
–
, H
2
O, NH
2
–
, I(CN)
2
–
, I
2
Cl
6
 
22. The bond length in O
2
 is 121 pm. The number of species having longer bond length than 121 pm: 
 O
2
-
, O
2
+
, H
2
O
2
, O
2
F
2
, O
2
2– 
23. The coordination number of the Ba
2+
 ions in barium fluoride is 8. The coordination number of the 
fluoride is: 
24. Among SF
4
, ClO
2
, XeF
4
 and ICl
4
–
 the number of species having two lone pair of electrons on the 
central atom according to VSEPR theory is: 
25. For a simple cubic crystal, X-ray diffraction shows intense reflections for angles ?
1
 and ?
2
 which 
are assigned to [101] and [111] planes, respectively, the ratio sin ?
1
/sin ?
2
 is: 
26. The no. of paramegnetic species among -triplate carbene, O
2, 
ClO
2
, NO
2
, N
2
O, methyl radical 
anion: 
27. A newly synthesized copper complex with molecular formula C
11
H
29
N
5
B
2
Cu is found to 
crystallize in the orthorhombic system with a = 14.709 Å, b = 17.604 Å and c = 13.907 Å. The 
density is 1.17 g cm
–3
. Number of molecular per unit cell with be (B = 11, Cu = 63.5) 
28. The angle at which the first order braggs reflection is observed from (110) plane in a simple cubic 
unit cell of side 3.238 Å, when chromium k
?
 radiation of wavelength 2.29 Å is used is:(in degree)  
29. The minimum number of electrons needed to form a chemical bond between two atom is: 
30. An element crystallizes in fcc lattice having edge length 400 pm. Calculate the maximum 
diameter of atom which can be placed in interstitial site without distorting the structure: (in pm) 
 
 
 
Page 4


 
2637, Hudson Lane, Behind Khalsa College, Near G.T.B. Nagar Metro Station Gate No. 3 & 4, New Delhi – 110009 
Mob. 011-47455430, 08860929430, e-mail: info@asfinstitute.com, www.asfinstitute.com 
Chemical Bonding & Solid State Online Test (26
th
, Dec/16) 
1. The number of peroxide linkages and oxidation state of Cr in CrO
5
: 
 (a) 2, +6  (b) 1, +6  (c) 1, +8  (d) 2, +8 
2. The correct structure of [P(C
3
H
5
)
2
(CH
3
)
3
] is: 
 (a)    (b) 
CH
3
CH
3
H
3
C P
 
 (c)    (d) 
 
3. Increasing order of bond angle of: 
 (a) Cl
2
O < ClO
2
 < Cl
2
O
7
 < I
3
-
   (b) Cl
2
O < ClO
2
 < I
3
-
 < Cl
2
O
7
  
 (c) I
-
3
 < Cl
2
O
7
 < ClO
2
 < Cl
2
O   (d) Cl
2
O <  Cl
2
O
7 
< ClO
2
 < I
3
- 
4. Which of the following species are all the bonds not equal: 
 (a) SF
4
   (b) SiF
4
  (c) XeF
4
  (d) BF
4
- 
5. Which of the following species has two non-bonded electron pairs on the central atom: 
 (a) TeCl
4
  (b) ClF
3
  (c) ICl
2
   (d) PCl
3
  
6. In the MO configuration of XeF
2
, how many pairs are present in BMO, NBO, ABMO, 
respectively: 
 (a) 2, 0, 2  (b) 2, 1, 1  (c) 2, 2, 0  (d) 1, 2, 1 
7. In which of following C-C bond length will be longest: 
 (a) CH
3
–CF
3
  (b) FCH
2
–CH
2
F (c) F
2
CH–CHF
2
 (d) CF
3
–CF
3 
8. The correct order of bond strength: 
 (I) H–F > H–H > F–F    (II) N–N < P–P  
 (III) As–F > P–F > N–F   (IV) P–O > As–O > N–O 
 (a) I, II, III  (b) II, III, IV  (c) I, III, IV  (d) I, II, IV 
9. The probable state of hybridization for the transition state of hydrolysis mechanism of BCl
3
 and 
SF
4
 respectively: 
 (a) sp
2
, sp
3
d  (b) sp
3
, sp
3
  (c) sp
3
, sp
3
d
2  
(d) sp
3
, sp
3
d 
 
2637, Hudson Lane, Behind Khalsa College, Near G.T.B. Nagar Metro Station Gate No. 3 & 4, New Delhi – 110009 
Mob. 011-47455430, 08860929430, e-mail: info@asfinstitute.com, www.asfinstitute.com 
10. Band theory predicts that magnesium is an insulator. However, in practice it act as a conductor 
due to: 
 (a) Presence of filled 3s-orbital   (b) Overlap of filled 2p and filled 3s-orbital. 
 (c) Overlap of filled 3s and empty 3p-orbital.(d) Pressure of unfilled 3p-orbital. 
11. The number of nodal plane in p antibonding molecular orbital of acetylene: 
 (a) 2   (b) 1   (c) 0   (d) 3  
12. The shape and hybridization of KrF
2
 is: 
 (a) Trigonal bipyramidal ; sp
3
d  (b) Square pyramidal ; dsp
3
 
 (c) Linear ; sp
3
d    (d) Linear ; sp
2
d 
13. Number of second neighbours atom in SC, BCC & FCC respectively are: 
 (a) 6, 8, 12  (b) 12, 6, 6  (c) 6, 6, 12  (d) 6, 12, 6   
14. The bond order for N
2
, O
2
, N
2
–
, O
2
–
 varies as: 
 (a) N
2
 > N
2
–
 > O
2
 > O
2
–
   (b) N
2
 > O
2
 > N
2
–
 > O
2
–
 
 (c) O
2
 > N
2
 > O
2
–
 > N
2
–
   (d) N
2
–
 > N
2
 > O
2
–
 > O
2
 
15. Iron (II) Oxide, FeO, crystal has a cubic structure and each edge of the number cell is 5.0 Å. 
Density of the oxide is 4.0 g cm
–3
. Number of Fe
2+
 and O
2–
 ions present in each cell will be: 
 (a) One Fe
2+
 ions and one O
2–
 ions.  (b) Two Fe
2+
 ions and two O
2–
 ions. 
 (c) Three Fe
2+
 ions and three O
2–
 ions. (d) Four Fe
2+
 ions and four O
2–
 ions. 
16. Which one of the following statements is correct: 
 (a) Frenkel defect is a cation vacancy and a cation interstitial. 
 (b) Frenkel defect is anion vacancy and a cation interstitial. 
 (c) Density of solid remains unchanged in case of Frenkel defects. 
 (d) Density of a solid decrease in case of  Schottky defects. 
17. The incorrect statement among the following is: 
 (a) N
2
 has higher bond order than N
2
+
 has hence has larger bond length compared to N
2
+
. 
 (b) N
2
+
 has higher bond order than N
2
 and has larger bond length compared to N
2
. 
(c) N
2
 has higher bond order than N
2
+
 and hence has higher dissociation energy compared to N
2
+
. 
(d) N
2
 has lower bond order than N
2
+
 and hence has lower dissociation energy compared to N
2
+
 
energy. 
18. In which one of the following pairs, molecules have different shape: 
 (a) 
5 5
SiF and PCl
?
 (b) 
4 4
ICl and XeF
?
 (c) 
2
4 4
SO and SF
?
 (d) 
4 4
AsF and XeF
?
 
 
2637, Hudson Lane, Behind Khalsa College, Near G.T.B. Nagar Metro Station Gate No. 3 & 4, New Delhi – 110009 
Mob. 011-47455430, 08860929430, e-mail: info@asfinstitute.com, www.asfinstitute.com 
19. The number of lone pair are different in the pair: 
 (a) 
4 3
XeF ;ClF  (b) 
4 4
XeO ;ICl
?
 (c) 
2 2 4
XeO F ;ICl
?
 (d) 
4 3
XeO ;ClF  
20. Which of the following statement (s) is/are correct: 
 (a) Bond – length of CO
+
 is shorter than CO.  
 (b) Bond – length of CO
+
 is longer than CO. 
 (c) Both CO
+
 and CO has equal bond length. 
 (d) Bond order of CO
+
 is greater than CO.   
21. The number of fully planar molecules among I
3
+
. I
3
–
, H
2
O, NH
2
–
, I(CN)
2
–
, I
2
Cl
6
 
22. The bond length in O
2
 is 121 pm. The number of species having longer bond length than 121 pm: 
 O
2
-
, O
2
+
, H
2
O
2
, O
2
F
2
, O
2
2– 
23. The coordination number of the Ba
2+
 ions in barium fluoride is 8. The coordination number of the 
fluoride is: 
24. Among SF
4
, ClO
2
, XeF
4
 and ICl
4
–
 the number of species having two lone pair of electrons on the 
central atom according to VSEPR theory is: 
25. For a simple cubic crystal, X-ray diffraction shows intense reflections for angles ?
1
 and ?
2
 which 
are assigned to [101] and [111] planes, respectively, the ratio sin ?
1
/sin ?
2
 is: 
26. The no. of paramegnetic species among -triplate carbene, O
2, 
ClO
2
, NO
2
, N
2
O, methyl radical 
anion: 
27. A newly synthesized copper complex with molecular formula C
11
H
29
N
5
B
2
Cu is found to 
crystallize in the orthorhombic system with a = 14.709 Å, b = 17.604 Å and c = 13.907 Å. The 
density is 1.17 g cm
–3
. Number of molecular per unit cell with be (B = 11, Cu = 63.5) 
28. The angle at which the first order braggs reflection is observed from (110) plane in a simple cubic 
unit cell of side 3.238 Å, when chromium k
?
 radiation of wavelength 2.29 Å is used is:(in degree)  
29. The minimum number of electrons needed to form a chemical bond between two atom is: 
30. An element crystallizes in fcc lattice having edge length 400 pm. Calculate the maximum 
diameter of atom which can be placed in interstitial site without distorting the structure: (in pm) 
 
 
 
 
2637, Hudson Lane, Behind Khalsa College, Near G.T.B. Nagar Metro Station Gate No. 3 & 4, New Delhi – 110009 
Mob. 011-47455430, 08860929430, e-mail: info@asfinstitute.com, www.asfinstitute.com 
 
Answer key 
1.  (a) 2.  (b) 3.  (d) 4.  (a) 5.  (b) 
6.  (c) 7.  (b) 8.  (d) 9.  (c) 10.  (c) 
11.  (a) 12.  (c) 13.  (b) 14.  (a) 15.  (d) 
16.  (a,c,d) 17.  (a,b,d) 18.  (c,d) 19.  (b,c,d) 20.  (a,d) 
21.  (6) 22.  (4) 23.  (4) 24.  (2) 25.  (0.80 - 
0.84) 
26.  (5) 27.  (8 – 9) 28.  (30) 29.  (1) 30.  (115 – 
119) 
 
Read More
95 docs

FAQs on Chemical Bonding Online test as a assignmnet - Additional Documents & Tests for IIT JAM

1. What is chemical bonding?
Ans. Chemical bonding refers to the process of holding atoms together to form molecules or compounds. It involves the sharing, transferring, or combining of electrons between atoms to achieve stability. Chemical bonds are responsible for the formation and properties of all substances.
2. What are the different types of chemical bonds?
Ans. There are three main types of chemical bonds: 1. Ionic Bonds: Formed by the complete transfer of electrons from one atom to another. This results in the formation of ions, which are held together by electrostatic attractions. 2. Covalent Bonds: Formed by the sharing of electrons between atoms. These bonds are typically found in nonmetals and result in the formation of molecules. 3. Metallic Bonds: Found in metals and involve the sharing of a sea of delocalized electrons among a lattice of positively charged metal ions. This allows metals to conduct electricity and heat.
3. What factors influence the strength of a chemical bond?
Ans. The strength of a chemical bond is influenced by several factors: 1. Electronegativity: The difference in electronegativity between atoms determines the polarity of the bond. Greater electronegativity difference leads to stronger ionic or polar covalent bonds. 2. Atomic and Molecular Size: Smaller atoms or molecules tend to have stronger bonds due to the shorter bond length and greater electron density. 3. Number of Shared/Transferred Electrons: More shared or transferred electrons generally result in stronger bonds. 4. Bonding Environment: The presence of other atoms or molecules can affect the strength of a bond. For example, the presence of hydrogen bonds can significantly strengthen a molecule.
4. How does chemical bonding contribute to the properties of substances?
Ans. Chemical bonding plays a crucial role in determining the properties of substances. Different types of bonds result in various properties: 1. Ionic compounds have high melting and boiling points, are usually solids at room temperature, and conduct electricity when dissolved or molten. 2. Covalent compounds can be solids, liquids, or gases at room temperature. They have lower melting and boiling points compared to ionic compounds and generally do not conduct electricity. 3. Metallic bonds give metals their characteristic properties such as high electrical and thermal conductivity, malleability, and ductility.
5. How does chemical bonding affect the reactivity of substances?
Ans. The type of chemical bond greatly influences the reactivity of substances: 1. Ionic compounds often undergo reactions involving the exchange of ions, such as precipitation or acid-base reactions. 2. Covalent compounds can participate in various reactions, including oxidation-reduction reactions, acid-base reactions, and substitution reactions. 3. Metallic bonds contribute to the malleability and ductility of metals, allowing them to undergo shape changes without breaking the bonding. Overall, the presence and strength of chemical bonds determine how readily substances can undergo chemical reactions.
95 docs
Download as PDF
Explore Courses for IIT JAM exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

Objective type Questions

,

Exam

,

practice quizzes

,

ppt

,

Viva Questions

,

Semester Notes

,

MCQs

,

pdf

,

Extra Questions

,

study material

,

video lectures

,

Sample Paper

,

Previous Year Questions with Solutions

,

shortcuts and tricks

,

Free

,

past year papers

,

Chemical Bonding Online test as a assignmnet | Additional Documents & Tests for IIT JAM

,

Chemical Bonding Online test as a assignmnet | Additional Documents & Tests for IIT JAM

,

Important questions

,

Summary

,

Chemical Bonding Online test as a assignmnet | Additional Documents & Tests for IIT JAM

,

mock tests for examination

;