UPTET Exam  >  UPTET Tests  >  UP PGT Mock Test Series 2024  >  UP PGT Chemistry Mock Test - 6 - UPTET MCQ

UP PGT Chemistry Mock Test - 6 - UPTET MCQ


Test Description

30 Questions MCQ Test UP PGT Mock Test Series 2024 - UP PGT Chemistry Mock Test - 6

UP PGT Chemistry Mock Test - 6 for UPTET 2024 is part of UP PGT Mock Test Series 2024 preparation. The UP PGT Chemistry Mock Test - 6 questions and answers have been prepared according to the UPTET exam syllabus.The UP PGT Chemistry Mock Test - 6 MCQs are made for UPTET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for UP PGT Chemistry Mock Test - 6 below.
Solutions of UP PGT Chemistry Mock Test - 6 questions in English are available as part of our UP PGT Mock Test Series 2024 for UPTET & UP PGT Chemistry Mock Test - 6 solutions in Hindi for UP PGT Mock Test Series 2024 course. Download more important topics, notes, lectures and mock test series for UPTET Exam by signing up for free. Attempt UP PGT Chemistry Mock Test - 6 | 125 questions in 120 minutes | Mock test for UPTET preparation | Free important questions MCQ to study UP PGT Mock Test Series 2024 for UPTET Exam | Download free PDF with solutions
*Multiple options can be correct
UP PGT Chemistry Mock Test - 6 - Question 1

Consider the following reaction,

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 1



Both elements are present in the same substance . Such reaction is called intramolecular redox reaction.

UP PGT Chemistry Mock Test - 6 - Question 2

Acetic acid has Ka = 1.8 X 10 – 5 while formic acid had Ka = 2.1 X 10–4. What would be the magnitude of the emf of the cell

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 2

1 Crore+ students have signed up on EduRev. Have you? Download the App
UP PGT Chemistry Mock Test - 6 - Question 3

Noble gases are inert and do not form compounds like other elements because of their:

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 3

The correct answer is Option C. 

Noble gases have completely filled the outer shell/valence shell. Due to this reason they are very stable and do not react with other elements. Hence noble gases are called inert gases means they do not react with other elements to form chemical compounds.
 

UP PGT Chemistry Mock Test - 6 - Question 4

Which of the following elements are called representative elements?

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 4

The elements of "s" and "p" blocks except "d" group elements are called as representative elements. Their outer shells are not completely filled with electrons. The elements get the nearest inert gas configuration by losing or gaining or sharing of electrons. 

UP PGT Chemistry Mock Test - 6 - Question 5

Given, 

Q. Thus, ΔfH° of (C6H6) (l) is

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 5

C6H6(l) + 15/2O2(g) → 6CO2(g) + 3H2O(l)
∆Hr = (∆Hc)C6H6 ⇒-3261  = ∑Hproduct - ∑Hreactant = 6(-393.5) -3(-283.83) - ∆fHC6H6
∆Hf = 48 kJ mol-1

UP PGT Chemistry Mock Test - 6 - Question 6

Elements of which group are known as ore forming elements?

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 6

Maximum ores are of group 16 elemnts (O, S etc).

UP PGT Chemistry Mock Test - 6 - Question 7

Consider the ground state of Cr atom (Z = 24). The numbers of electrons with the azimuthal quantum numbers, l = 1 and 2 are, respectively                                                                  [AIEEE- 2004]

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 7

UP PGT Chemistry Mock Test - 6 - Question 8

Energy of the electron in nth orbit is given by E   Wavelength of light required to excite an electron in an H-atom from level n = 1 to n = 2 will be (h = 6.62 x 10-34 J s ; c = 3.0 x 108ms -1)

[AIEEE 2012]

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 8

For H - atom , Z = 1




UP PGT Chemistry Mock Test - 6 - Question 9

Oxygen exhibits +2 oxidation state in the compound:​

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 9

Reason behind it is that fluorine is more electronegative element than oxygen.

UP PGT Chemistry Mock Test - 6 - Question 10

Calculate resonance energy of N2O from the following data

ΔfH° (N2O) = 82 kJ mol-1


Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 10

= 946 + 249 - 607 - 418 = 1195 - 1025 = 170 kJ mol-1 
Resonance energy = Observed heat of formation – calculated heat of formation 
= 82 -170 = 88 kJ mol-1

UP PGT Chemistry Mock Test - 6 - Question 11

At 700 K and 350 bar, a 1 : 3 mixture of N2(g) and H2(g) reacts to form an equilibrium mixture containing X (NH3)= 0.50. Assuming ideal behaviour Kp for the equilibrium reaction, 

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 11

The correct answer is option A
2.03x 10-4
The given equation is :-
 N2​(g)+3H2​(g) ⇌ 2NH3​(g)
Initial moles : 1             3         0
At eqm ;       (1−x)    (3−3x)   (2x)               
(let)
Total moles of equation
 =1 − x + 3 − 3x + 2x = (4−2x)
Now, X(NH3​) = 
⇒ 2x = 2 − x
⇒ 3x = 2 ⇒ x = 0.66 = 
32​
Now, at equation, moles of N2​= 1/3, moles of NH3​ = 4/3
             moles of H2 ​ =3 − 2 = 1

 

UP PGT Chemistry Mock Test - 6 - Question 12

The rate of reaction can be measured as  

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 12

Rate of reaction can be measured in terms of Rate of disappearance of reactant or rate of apperance of product.

UP PGT Chemistry Mock Test - 6 - Question 13

Presence of particulate matter in polluted air catalyses the oxidation of sulphur dioxide to:

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 13

The presence of particulate matter in polluted air catalyses the oxidation of sulphur dioxide to sulphur trioxide. Oxides of Nitrogen: Di-nitrogen and di-oxygen are the main constituents of air. These gases do not react with each other at a normal temperature.

UP PGT Chemistry Mock Test - 6 - Question 14

The disadvantage of using Penicillin is

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 14

Pencillin causes allergic reactions.

UP PGT Chemistry Mock Test - 6 - Question 15

As you move from left to right across the periodic table:

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 15

Even though each atom has more electrons as you move from left to right across the periodic table, the atomic radius decreases. The reason is that you're also adding more protons, which exert a stronger attractive force on the electrons, drawing them in a tiny bit closer. Ionic radius also decreases, although not for the exact same reason.

UP PGT Chemistry Mock Test - 6 - Question 16

How many valence electrons does a carbon atom have?

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 16

A carbon atom has four valence electrons. The number of valence electrons of any atom of an element can be determined by the period table group in which the element is classified. There are a total of 18 groups on the period table group.

UP PGT Chemistry Mock Test - 6 - Question 17

XeF2 is isostructural with

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 17

 XeF2-sp3d hybridised Xe
Three lone pairs on equatorial positions to minimise repulsion; two F-atom at axial position. Thus, it is linear.

(a) TeF2,Te50 - Six electrons in valence shell

(b)   hybridised l- atom with three lone pairs at equatorial positions to minimise repulsion thus, linear.

(c) SoCI3 - sp3-hybridised pyramidal Sb-one lone pair on Sb.
(d) BaCI2 - ionic .

UP PGT Chemistry Mock Test - 6 - Question 18

Comprehension Type

Direction (Q. Nos. 23-27) This section contains a paragraph, describing theory, experiments, data, etc.
Five questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).

Passage

A chemist isolated a compound A with molecular formula C7H13Br. A undergoes very fast SN1 reaction. Spectroscopic evidence indicated that compound A has the following structural characteristics : It contains five sp3-hybridised carbon atoms. Among those five sp3 carbon atoms, three are methyl groups, one CH2 group and one CH group.
It also contains two sp2-hybridised carbon atoms. Also there is only one hydrogen atom attached to sp2 carbons.
The compound contains a total of six aliylic hydrogen atoms.
The carbon atom that holds the Br has one H attached to it.
Working Space
When compound A reacts with boiling water, it undergoes a SN1 reaction and produces two principal products B and C. Both B and C are alcohols with their molecular formula C7H14O. Among the two alcohols, B has the —OH group attached to a sp3 carbon atom that has no H -atoms bonded to it.

Q. 

How many stereoisomers are possible for A?

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 18

It shows geometrical isomerism as well as it has a chiral carbon. Hence, A will have four stereoisomers

UP PGT Chemistry Mock Test - 6 - Question 19

The greenhouse effect is thought to be the cause of:

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 19

The greenhouse effect increases the global temperature

UP PGT Chemistry Mock Test - 6 - Question 20

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 20

The correct answer is Option A.

Out of the given four compounds only the first one has a chiral carbon. Hence compound A is optically active and it can rotate the plane polarised light.
 

*Answer can only contain numeric values
UP PGT Chemistry Mock Test - 6 - Question 21

In a fuel cell, following reactions takes place and electricity is produced. 

Anodic

H2+2OH- → 2H2O + 2e-

Cathodic

O2+2H2O + 4e- → 4OH-

If 100.8 L of H2 at STP reacts in 96500 s,what is the average current produced (in ampere)?   


Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 21

UP PGT Chemistry Mock Test - 6 - Question 22

Study the following reactions.

Which characteristic of catalyst is represented by them.?

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 22

Selectivity is the ability to direct the reaction to get a particular product. Here we change the catalyst and we obtain different products with reactant remaining the same.

UP PGT Chemistry Mock Test - 6 - Question 23

The number of phases in colloidal system are:

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 23
  • Colloidal system is a mixture of two substances, one of which, called the dispersed phase (or colloid), is uniformly distributed in a finely divided state through the second substance, called the dispersion medium (or dispersing medium).
  • So, here are 2 phases.
UP PGT Chemistry Mock Test - 6 - Question 24

The more positive the value of E0, the greater is the tendency of the species to get reduced. Using the standard electrode potential of redox couples given below find out which of the following is the strongest oxidising agent. 

E0values : Fe3 + / Fe2+ = +0.77; I2(s)/l- = +0.54; cu2+/ Cu = +0.34; Ag+ / Ag = +0.80V

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 24

The standard electrode potential, E0, is a measure of the tendency of a chemical species to be reduced. The higher the E0 value, the greater the tendency for reduction.

In a redox reaction, the chemical species that gets reduced acts as the oxidising agent. Therefore, the species with the highest E0 value will be the strongest oxidising agent.

Given the E0 values:

  • Fe3+ / Fe2+ = +0.77V
  • I2(s) / I- = +0.54V
  • Cu2+ / Cu = +0.34V
  • Ag+ / Ag = +0.80V


From the given values, it is clear that Ag+ / Ag has the highest E0 value (+0.80V). Therefore, Ag+ is the strongest oxidising agent among the given options.

Conclusion:

  • Ag+ is the strongest oxidising agent because it has the highest standard electrode potential (E0) value among the given species.
  • Remember, the higher the E0 value, the greater the tendency of the species to be reduced, and hence, stronger is its oxidising power.
UP PGT Chemistry Mock Test - 6 - Question 25

What is the atomic number of the element unniloctium?

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 25

As per IuPAC nomenclature of periodic elements greater than 100, Un means 1, nil means 0 and oct means 8, so the element numbered 108 is unniloctium. It’s chemical names is Hassium and is represented by the symbol “Hs”. It is highly radioactive in nature and man made.

UP PGT Chemistry Mock Test - 6 - Question 26

 For an aqueous solution, freezing point is _0.186ºC . Boiling point of the same solution is

(Kƒ = 1.86º K mol-1 kg) and Kb = 0.512º K mol-1 kg)

[AIEEE-2002]

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 26

ΔTb/Kb = ΔTf/Kf
0.186/18.6 = ΔTb/0.512
ΔTb = 0.1x0.512
= 0.0512.
Boiling point = boiling point (of water) + ΔTb
=> 100 + 0.0512
= 100.0512

UP PGT Chemistry Mock Test - 6 - Question 27

Identify the pair of enantiomers amongst the given pairs:

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 27

The correct answer is Option B.
The 1st option has R configuration and 2nd has S configuration hence they are non super imposable mirror images of each other and are enantiomers.

UP PGT Chemistry Mock Test - 6 - Question 28

The correct set of four quantum numbers for the valence electron of rubidium atom (Z = 37) is

[JEE Main 2013]

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 28

UP PGT Chemistry Mock Test - 6 - Question 29

Sodium pentacyanonitrosylferrate(II) is also called?

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 29

Na2[Fe(CN)5NO] is Sodium nitroprusside.

UP PGT Chemistry Mock Test - 6 - Question 30

Silicon doped with electron-rich impurity forms

Detailed Solution for UP PGT Chemistry Mock Test - 6 - Question 30

 (b)

(a) When Si is doped with electron-deficient impurity -(p -type)

(b) When Si is doped with electron-rich impurity-(n-type)

(c) In case of semiconductors, the gap between the valence band and conduction band is small. Some electrons may Jump to conduction band and thus, conduction is observed. Semiconductors of this type are called intrinsic semiconductors.

(d) Insulators are non-conducting with high energy gap.

View more questions
30 tests
Information about UP PGT Chemistry Mock Test - 6 Page
In this test you can find the Exam questions for UP PGT Chemistry Mock Test - 6 solved & explained in the simplest way possible. Besides giving Questions and answers for UP PGT Chemistry Mock Test - 6, EduRev gives you an ample number of Online tests for practice

Top Courses for UPTET

Download as PDF

Top Courses for UPTET