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Chemical Equilibrium MCQ - 1 (Advanced)


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25 Questions MCQ Test Chemistry for JEE Advanced | Chemical Equilibrium MCQ - 1 (Advanced)

Chemical Equilibrium MCQ - 1 (Advanced) for JEE 2022 is part of Chemistry for JEE Advanced preparation. The Chemical Equilibrium MCQ - 1 (Advanced) questions and answers have been prepared according to the JEE exam syllabus.The Chemical Equilibrium MCQ - 1 (Advanced) MCQs are made for JEE 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Chemical Equilibrium MCQ - 1 (Advanced) below.
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Chemical Equilibrium MCQ - 1 (Advanced) - Question 1

Which of the following statements is (are) correct ?

*Multiple options can be correct
Chemical Equilibrium MCQ - 1 (Advanced) - Question 2

The value of equilibrium constant of a reversible reaction at a given temperature :

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 2 Equilibrium constant is independent of original concentration of reactant.
*Multiple options can be correct
Chemical Equilibrium MCQ - 1 (Advanced) - Question 3

Which of the following statement is (are) correct ?

*Multiple options can be correct
Chemical Equilibrium MCQ - 1 (Advanced) - Question 4

If is found that the equilibrium constant increases by factor of four when the temperature is increased from 25°C to 40°C. The value of ΔH° is

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 4

As we know

*Multiple options can be correct
Chemical Equilibrium MCQ - 1 (Advanced) - Question 5

Ammonium carbamate dissociates as follows :

NH2COONH4(s)  2NH3(g) + CO2(g)

The value of KP for this reaction is found to be equal to 2.92 × 10-5 atm3. If one mole of ammonium carbamate is heated in a sealed container, the total pressur develped in the container is

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 5


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Chemical Equilibrium MCQ - 1 (Advanced) - Question 6

The equilibrium constant for the following reactions at 1400 K are given.

2H2O(g) 2H2(g) + O2(g) ; K1=2.1×10-13

2CO2(g)2CO(g)+O2(g);K2 = 1.4 × 10-12

Then, the equilibrium constant K for the reaction

H2(g) + CO2(g)  CO(g) + H2O(g) is

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 6



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Chemical Equilibrium MCQ - 1 (Advanced) - Question 7

Under what conditions of temperature and pressure, the formation of atomic hydrogen from molecular hydrogen will be favoured most ?

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 7

*Multiple options can be correct
Chemical Equilibrium MCQ - 1 (Advanced) - Question 8

For the reaction PCl5(g)  PCl3(g) + Cl2(g), the forward reaction at constant temperature is favoured by

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 8

Introduction of inet gas at constant Pressure will increase  Pressure of gases of equilibrium
⇒ equilibrium shifted forward

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Chemical Equilibrium MCQ - 1 (Advanced) - Question 9

When NaNO3(s) is heated in a closed vessel, oxygen is liberated and NaNO2(s) is left behind. At equilibrium.

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 9


High temperature
∴  forward reaction favoured 1000 pressure
High pressure → Reverse reaction

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Chemical Equilibrium MCQ - 1 (Advanced) - Question 10

Phase diagram of CO2 is shown as following

Based on above find the correct statement (s)

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Chemical Equilibrium MCQ - 1 (Advanced) - Question 11

The equilibrium between, gaseous isomers A, B and C can be represented as

Reaction                                           Equilibrium constant

A(g)  B (g)                            : K1 = ?

B(g)  C(g)                             : K2 = 0.4

C(g)  A(g)                             : K3 = 0.6

If one mole of A is taken in a closed vessel of volume 1 litre, then

*Multiple options can be correct
Chemical Equilibrium MCQ - 1 (Advanced) - Question 12

For the gas phase exothermic reaction.

A2 + B2  C2, carried out in a closed vessel, the equilibrium moles of A2 can be increased by

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 12

According to Le Chatelier’s Principle A, B and C are correct.

Hence A, B and C

*Multiple options can be correct
Chemical Equilibrium MCQ - 1 (Advanced) - Question 13

Consider the equilibrium

HgO(s) + 4I- (aq) + H2O(l) Hg I42- (aq) + 2OH- (aq), which changes will decrease the equilibrium concentration of HgI42-

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 13

As given :

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Chemical Equilibrium MCQ - 1 (Advanced) - Question 14

In the laboratory the equilibrium constant for a particular reaction can be measured at different temperatures. Plotting the data yields the graph shown. Which of the following statements is false?

(Note : The notation 4.40 e- 4 is equivalent to 4.40 × 10-4)

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 14


slope of the line equal to ΔHº/R

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Chemical Equilibrium MCQ - 1 (Advanced) - Question 15

Decrease in the pressure for the following equilibria : H2O (s)  H2O(l) result in the :

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 15


∴ formation of more H2O (s) and  increase in melting point of H2O (s)

Chemical Equilibrium MCQ - 1 (Advanced) - Question 16

Statement-1 : Water boils at high temperature in pressure cooker.

Statement-2 : Increase in pressure leads to an increase in boiling point.

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 16

Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1

Chemical Equilibrium MCQ - 1 (Advanced) - Question 17

Statement-1 : A decrease in pressure leads to an increase in freezing point of water.

Statement-2 : For ice on melting volume decreases.

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 17

Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1

Chemical Equilibrium MCQ - 1 (Advanced) - Question 18

Statement-1 : The solubility of gases always increases with increase in pressure.

Statement-2 : High pressure favours the change where volume of gas decreases.

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 18

Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1

Chemical Equilibrium MCQ - 1 (Advanced) - Question 19

Statement-1 : Total number of moles in a closed system at new equilibrium is less than the old equilibrium if some amount of a substance is removed from a system.

A(g)  B(g) equilibrium.

Statement-2 : The number of moles of the substance which is removed, is partially compensated as the system reached to new equilibrium.

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 19

Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1

Chemical Equilibrium MCQ - 1 (Advanced) - Question 20

Statement-1 : An exothermic reaction, non-spontaneous at high temperature, may become spontaneous at low temperature.

Statement-2 : Entropy of an exothermic reaction always decrease with decrease in temperature.

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 20

Statement-I is false, statement-2 is true.

Chemical Equilibrium MCQ - 1 (Advanced) - Question 21

Statement-1 : Ammonia at a pressure of 10 atm and CO2 at a pressure of 20 atm are intoduced into an evacuated chamber. If Kp for the reaction.

NH2COONH4(s)  2NH3(g) + CO2(g) is 2020 atm3, the total pressure after a long time is less than 30 atm.

Statement-2 : Equilibrium can be attained from both directions.

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 21

Statement-1 is true, statement-2 is false.

Chemical Equilibrium MCQ - 1 (Advanced) - Question 22

In a 7.0 L evacuated chamber, 0.50 mol H2 and 0.50 mol I2 react at 427°C

H2(g) + I2 (g)  2HI(g). At the given temperature, Kc = 49 for the reaction.

What is the value of Kp ?

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 22

Chemical Equilibrium MCQ - 1 (Advanced) - Question 23

In a 7.0 L evacuated chamber, 0.50 mol H2 and 0.50 mol I2 react at 427°C

H2(g) + I2 (g)  2HI(g). At the given temperature, Kc = 49 for the reaction.

What is the total pressure (atm) in the chamber

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 23


Chemical Equilibrium MCQ - 1 (Advanced) - Question 24

In a 7.0 L evacuated chamber, 0.50 mol H2 and 0.50 mol I2 react at 427°C

H2(g) + I2 (g)  2HI(g). At the given temperature, Kc = 49 for the reaction.

How many moles of the iodine remain unreacted at equilibrium ?

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 24

from above question


Chemical Equilibrium MCQ - 1 (Advanced) - Question 25

In a 7.0 L evacuated chamber, 0.50 mol H2 and 0.50 mol I2 react at 427°C

H2(g) + I2 (g)  2HI(g). At the given temperature, Kc = 49 for the reaction.

What is the partial pressure (atm) of HI in the equilibrium mixture ?

Detailed Solution for Chemical Equilibrium MCQ - 1 (Advanced) - Question 25

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