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IIT JAM Chemistry - MCQ Test 2 - Chemistry MCQ


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60 Questions MCQ Test Mock Test Series for IIT JAM Chemistry - IIT JAM Chemistry - MCQ Test 2

IIT JAM Chemistry - MCQ Test 2 for Chemistry 2024 is part of Mock Test Series for IIT JAM Chemistry preparation. The IIT JAM Chemistry - MCQ Test 2 questions and answers have been prepared according to the Chemistry exam syllabus.The IIT JAM Chemistry - MCQ Test 2 MCQs are made for Chemistry 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for IIT JAM Chemistry - MCQ Test 2 below.
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IIT JAM Chemistry - MCQ Test 2 - Question 1

The order of decreasing energy among covalent bond (CB), dipole-dipole interaction (DDI) and London dispersion forces (LDF) is:

*Multiple options can be correct
IIT JAM Chemistry - MCQ Test 2 - Question 2

T50 (half-life period) of first order reaction is 10 min. Starting with 10 mol L-1, rate after 20 min is:

*Multiple options can be correct
IIT JAM Chemistry - MCQ Test 2 - Question 3

The set representing the correct order of ionic radius is:

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IIT JAM Chemistry - MCQ Test 2 - Question 4

Which of the following magnetic moment values will correspond to highest ionization energy form Mn species:

*Multiple options can be correct
IIT JAM Chemistry - MCQ Test 2 - Question 5

For the reaction   

Then relation between k1, k2 and k3 is 

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IIT JAM Chemistry - MCQ Test 2 - Question 6

Efficiency of Carnot’s engine is 100 % when

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IIT JAM Chemistry - MCQ Test 2 - Question 7

Arrange the following compounds in order of Ca—Cb bond length:

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IIT JAM Chemistry - MCQ Test 2 - Question 8

All the following are the resonance structure of one another except:

*Multiple options can be correct
IIT JAM Chemistry - MCQ Test 2 - Question 9

Bombardment of aluminium by α-particle leads to its artificial disintegration in two ways (i) and (ii) as shown. Product X, Y and Z respectively are:

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IIT JAM Chemistry - MCQ Test 2 - Question 10

Heat of dissociation of CH3COOH is 0.005 kcal g-1, hence enthalpy change when 1 mole of Ca(OH)is completely neutralized by CH3COOH is:

*Multiple options can be correct
IIT JAM Chemistry - MCQ Test 2 - Question 11

The heat released on neutralization of CsOH with all strong acids is 13.4 kcal mol-1. The heat released on neutralization of CsOH with HF (weak acid) is 16.4 kcal mol-1. ΔH° of ionization of HF in water is:

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IIT JAM Chemistry - MCQ Test 2 - Question 12

At low pressure, that Vander Waal’s equation is reduced to:

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IIT JAM Chemistry - MCQ Test 2 - Question 13

Correct order of stability of the following carbocation is:

Detailed Solution for IIT JAM Chemistry - MCQ Test 2 - Question 13

At metaposition, hyperconjugation do not take place. 

Inductive effect order −H<−D i.e R−CH3​<R−CD3 (Stability)

Hyperconjugation order −H<−D i.e R−CH3>R−CD3​ (Stability)

and Hyperconjugated compound is always more stable than inductive effect.

Therefore, Order is I>II>IV>III

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IIT JAM Chemistry - MCQ Test 2 - Question 14

The decay modes of 14C and 14O are:

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IIT JAM Chemistry - MCQ Test 2 - Question 15

If 3/4 quantity of a radioactive element disintegrates in two hours its half- life would be:

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IIT JAM Chemistry - MCQ Test 2 - Question 16

What is the stereochemical relationship between the following compound:

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IIT JAM Chemistry - MCQ Test 2 - Question 17

Among the structures given below, the most stable conformation for the following compound is:

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IIT JAM Chemistry - MCQ Test 2 - Question 18

Following configuration of the tartaric acid represents:

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IIT JAM Chemistry - MCQ Test 2 - Question 19

The gauche conformation (θ = 60°) of n-butane possess:

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IIT JAM Chemistry - MCQ Test 2 - Question 20

Rate of formation of SO3 in the following reaction

is 100g min-1. Hence, rate of disappearance of O2 is:

Detailed Solution for IIT JAM Chemistry - MCQ Test 2 - Question 20

Rate of a reaction is defined as the rate of change of concentration per unit time.

The rate in terms of reactants is given as negative as the concentration of reactants is decreasing with time whereas the rate in terms of products is given as positive as the concentration of products is increasing with time.

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IIT JAM Chemistry - MCQ Test 2 - Question 21

Any gas shows maximum deviation from ideal gas at:

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IIT JAM Chemistry - MCQ Test 2 - Question 22

The de-Broglie wavelength of the electron in the ground state of hydrogen atom is ? Given: KE = 13.6 eV, 1 eV = 1.6*10 -19J.

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IIT JAM Chemistry - MCQ Test 2 - Question 23

For a first order homogenous gaseous reaction, then initial pressure was P, while total pressure after time ‘t’ was Pt. The write expression for the rate constants k in terms of Pi, Pt and t is:

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IIT JAM Chemistry - MCQ Test 2 - Question 24

In which of the following reactions, hydrogen peroxide acts as on oxidizing agent:

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IIT JAM Chemistry - MCQ Test 2 - Question 25

Heat of neutralization of H2C2O4 (oxalic acid) is - 2 6 kcal mol-1. Hence dissociation energy of:

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IIT JAM Chemistry - MCQ Test 2 - Question 26

Which is the correct order of dipole moments of the compounds:

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IIT JAM Chemistry - MCQ Test 2 - Question 27

Which carbocation is the most stabilized:

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IIT JAM Chemistry - MCQ Test 2 - Question 28

Nodal plane in the π bond is located in:

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IIT JAM Chemistry - MCQ Test 2 - Question 29

The correct order of increasing bond angles in the following triatomic species  

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IIT JAM Chemistry - MCQ Test 2 - Question 30

The schrodinger wave equation for hydrogen atom is:

where ao is Bohr radius. Find position of radial node.

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IIT JAM Chemistry - MCQ Test 2 - Question 31

For the reaction: H3PO3 + Ba(OH)→ BaHPO3 + 2H2O The correct statement(s) is/are

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IIT JAM Chemistry - MCQ Test 2 - Question 32

Select incorrect statement(s):

Detailed Solution for IIT JAM Chemistry - MCQ Test 2 - Question 32

(b) Compressibility factor of an ideal gas is 1.
(c) Real gas behaves like ideal gas at high temperature and low pressure.

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IIT JAM Chemistry - MCQ Test 2 - Question 33

Which of the following set(s) of quantum numbers is(are) not allowed:

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IIT JAM Chemistry - MCQ Test 2 - Question 34

A radioactive element X emits α-particles followed by 2 p-particles in the successive steps as:

Which of the following statement(s) is/are correct?

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IIT JAM Chemistry - MCQ Test 2 - Question 35

Identify which of the structures below are meso structures:

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IIT JAM Chemistry - MCQ Test 2 - Question 36

Select the correct statements, out of I, II and III for zeroth order reaction.
(I) Quantity of the product formed, is directly proportional to time.
(II) Larger the initial concentration of the reactant greater the half-life period
(III) If 50% reaction takes place in 100 min, 75% reaction take place in 150 min.

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IIT JAM Chemistry - MCQ Test 2 - Question 37


Which is/are correct statements):

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IIT JAM Chemistry - MCQ Test 2 - Question 38

The enthalpy of neutralization of which of the following acids and bases is nearly -13.6 kcal:

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IIT JAM Chemistry - MCQ Test 2 - Question 39

The following is (are) endothermic reaction:

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IIT JAM Chemistry - MCQ Test 2 - Question 40

Hydrogen bonding plays a central role in the following phenomena:

Detailed Solution for IIT JAM Chemistry - MCQ Test 2 - Question 40

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IIT JAM Chemistry - MCQ Test 2 - Question 41

What is the strength (in g/litre) of a solution of H2SO4, 12 mL of which neutralized 15 mL of N/10 NaOH solution:


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IIT JAM Chemistry - MCQ Test 2 - Question 42

In an ideal monoatomic gas, the speed of sound is given by . If the speed of sound in argon at 25°C us 1245 km h-1, the root mean square velocity (in ms-1) is...........?


*Answer can only contain numeric values
IIT JAM Chemistry - MCQ Test 2 - Question 43

Volume (mL) of H2C2O4. 2H2O solution to prepare 0.10 M from 1.575g of it is ?


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IIT JAM Chemistry - MCQ Test 2 - Question 44

The effective nuclear charge of helium atom is 1.7. The first ionization energy of helium atom (in eV) is ....... ? 


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IIT JAM Chemistry - MCQ Test 2 - Question 45

The standard molar enthalpy of formation of molecular oxygen at 298 K is zero. Thus its value  (in KJ/mol) at 315 K is...... ? Given 


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IIT JAM Chemistry - MCQ Test 2 - Question 46

The amount of heat (in kJ) evolved when 500 cm3 of 0.1 M HCl is mixed with 200 cm3 of 0.2M NaOH is.......?


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IIT JAM Chemistry - MCQ Test 2 - Question 47

Find out the double bond equivalent (DBE) value of the given following compound:


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IIT JAM Chemistry - MCQ Test 2 - Question 48

A mixture of 50.0 mL o f NH3 and 60.0 mL of Ogas reacts as

If all the gases are at the same temperature and pressure and the reaction continuous until one of the gases is completely consumed, what volume (in mL) of water vapour is produced.


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IIT JAM Chemistry - MCQ Test 2 - Question 49

How many of the following inter halogen species have 2 lone pairs of electrons on the central atom? ClF3, ClF2-, CIF5 ICl2- and XeF2


Detailed Solution for IIT JAM Chemistry - MCQ Test 2 - Question 49

Chlorine trifluoride has 5 regions of electron density around the central chlorine atom (3 bonds and 2 lone pairs). These are arranged in a trigonal bipyramidal shape with a 175° F(axial)-Cl-F(axial) bond angle.
In a ClF5 molecule, chlorine is the central atom featuring five single bonds with fluorine atoms. Since chlorine has 7 electrons in the valence shell, the remaining two electrons form a lone pair.

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IIT JAM Chemistry - MCQ Test 2 - Question 50

For the radioactive isotope 131I, the time required for 50% disintegration is 8 days. The time required for the 99.9% disintegration of 5.5g of 131I is __________ days, (up to one decimal place):


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IIT JAM Chemistry - MCQ Test 2 - Question 51

The number of resonance structures for the compound is: 


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IIT JAM Chemistry - MCQ Test 2 - Question 52

The standard enthalpy of formation of NH3 is -4 6 .0 kJ mol -1. If the enthalpy of formation of H2 from its atoms is —436 kJ mol -1 and that of N2 is -712 kJ mol the average bond enthalpy of N—H bond in NH3 is: (in kJ/mol)


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IIT JAM Chemistry - MCQ Test 2 - Question 53

The ΔH° for the reaction at 400 K in kJ mol-1 is ___________________.

Given at 298 K:


Detailed Solution for IIT JAM Chemistry - MCQ Test 2 - Question 53

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IIT JAM Chemistry - MCQ Test 2 - Question 54

One mole of Al4C3(s) reacts with H2O in a closed vessel at 27°C against atmospheric pressure. Work done (in cal) is....?


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IIT JAM Chemistry - MCQ Test 2 - Question 55

The total number of compounds which show -M effects:

;   


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IIT JAM Chemistry - MCQ Test 2 - Question 56

What will be the longest wavelength line in Balmer’s series of spectrum: (in nm)


Detailed Solution for IIT JAM Chemistry - MCQ Test 2 - Question 56

The longest wavelength means the lowest energy. We know that relation for wavelength

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IIT JAM Chemistry - MCQ Test 2 - Question 57

N2 + 3H2 —> 2NH3. 1 mole N2 and 4 moles H2 are taken in 15 L flask at 27°C. After complete conversion of N2 into NH3, 5L of H2O is added. Pressure set up in the flask is: (in atm)


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IIT JAM Chemistry - MCQ Test 2 - Question 58

The potential energy of an electron in the first Bohr orbit in the He+ ion is: (in eV)


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IIT JAM Chemistry - MCQ Test 2 - Question 59

At equilibrium, number of atoms disintegrating at two different stages are in the ratio of 1:10. If the half-life of first stage is 15 minutes, half-life second stage would be: (in min)


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IIT JAM Chemistry - MCQ Test 2 - Question 60

Among the following, the number of anhydrides of acids are.
CO, NO, B2O3, N2O5, SO3, P4O10, SO2


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