Assertion(A): When an inert gas is added to the equilibrium $$N_2 + O_2 \rightleftharpoons 2NO$$ , at constant pressure, the equilibrium state doesn't change.
Reason(R): At constant pressure, equilibrium is never affected by the addition of inert gas.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.

Subtopic:  Le Chatelier's principle |
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Assertion(A): Five times increase in pressure on reaction.
$$N_2 (g) + 3H_2(g) \rightleftharpoons 2NH_3 (g)$$
at equilibrium doesn't change Kp.
Reason(R): Kp depends on the degree of dissociation, not on total pressure.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.

Subtopic:  Kp, Kc & Factors Affecting them |
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Assertion(A): Salts of strong acid and strong base do not undergo hydrolysis.
Reason(R): These salts undergo hydration.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.
Subtopic:  Salt Hydrolysis & Titration |
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Assertion(A): The ionization of NH4OH is suppressed on adding NH4Cl.
Reason(R): It is due to the common ion effect.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.
Subtopic:  Common Ion Effect |
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Assertion(A): On increasing the pressure at the equilibrium Ice $$\rightleftharpoons$$ Water, equilibrium shifts in forward direction.
Reason(R): The volume of water is less than the volume of ice.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.
Subtopic:  Le Chatelier's principle |
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Assertion(A): BaCO3 is more soluble in HNOthan in plain water.
Reason(R): Carbonate is a strong base and reacts with the H+ from the strong acid, causing the barium salt to dissociate.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.
Subtopic:  Ionisation Constant of Acid, Base & Salt |
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Assertion(A): Relative strength of acids can be known by knowing the value of the dissociation constant.
Reason(R): It gives the value of [H+] dissolved in solution.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.
Subtopic:  Acids & Bases - Definitions & Classification |
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Assertion(A): On addition of NH4Cl to NH4OH solution, pH decreases but remains greater than 7
Reason(R): Addition of $$NH^+_4$$ ion decreases ionization of NH4OH thus [OH-] is decreased, hence pH decreases.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.
Subtopic:  Common Ion Effect |
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Assertion(A): A catalyst does not influence the value of equilibrium constant.
Reason(R): Catalyst influence the rate of both forward and backward reactions equally.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.

Subtopic:  Introduction To Equilibrium |
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Assertion :  For an exothermic reaction, the value of Kc decreases on increasing the temperature
Reason : Rate constant for a backward reaction increases more than the increase in the rate constant for a forward reaction

1. Both assertion and reason are true, and reason is the correct explanation of the assertion

2. Both assertion and reason are true, but reason is not the correct explanation of the assertion

3. Assertion is true but reason is false

4. Both assertion and reason are false

Subtopic:  Kp, Kc & Factors Affecting them |
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