Assertion and Reason Questions for Class 11 Chemistry Chapter 7 Equilibrium
Directions:
(a) Assertion is correct, reason is correct; reason is a correct explanation for assertion.
(b) Assertion is correct, reason is correct; reason is not a correct explanation for assertion
(c) Assertion is correct, reason is incorrect
(d) Assertion is incorrect, reason is correct.
Table of Contents
Q.1. Assertion: If a volume is kept constant and an inert gas such as argon is added which does not take part in the
reaction, the equilibrium remains undisturbed.
Reason: It is because the addition of an inert gas at constant volume does not change the partial pressure or the molar concentrations of the substance involved in the reaction.
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Answer: (a)Q.2. Assertion: Kp can be less than, greater than or equal to Kc.
Reason: Relation between Kp and Kc depends on the change in number of moles of gaseous reactants and products (Δn).
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Answer: (a)Q.3. Assertion: Addition of silver ions to a mixture of aqueous sodium chloride and sodium bromide solution will first precipitate AgBr rather than AgCl.
Reason: Ksp of AgCl > Ksp of AgBr.
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Answer: (a)Q.4. Assertion: Buffer system of carbonic acid and sodium bicarbonate is used for the precipitation of hydroxides of third group elements.
Reason: It maintains the pH to a constant value, about 7.4.
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Answer: (d)Related Posts
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