Assertion(A): Zinc displaces copper and silver from solutions of their salts. Reason (R): Zinc has a lower oxidation potential than copper and silver.

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Q: 41 (CDS-I/2002)
Assertion(A): Zinc displaces copper and silver from solutions of their salts. Reason (R): Zinc has a lower oxidation potential than copper and silver.

question_subject: 

Science

question_exam: 

CDS-I

stats: 

0,15,34,18,14,15,2

keywords: 

{'zinc displaces copper': [0, 0, 1, 0], 'zinc': [1, 0, 0, 2], 'copper': [1, 0, 1, 1], 'lower oxidation potential': [0, 0, 1, 0], 'silver': [0, 0, 0, 1], 'salts': [0, 0, 2, 0], 'solutions': [0, 0, 2, 3]}

Option 1 states that both Assertion A and Reason R are individually true, and Reason R is the correct explanation of Assertion A.

Assertion A states that zinc displaces copper and silver from solutions of their salts. This is true because zinc is more reactive than copper and silver, so it can displace them in a chemical reaction.

Reason R states that zinc has a lower oxidation potential than copper and silver. This is not a correct explanation of Assertion A. The oxidation potential refers to the tendency of a substance to lose electrons and be oxidized. While it is true that zinc has a lower oxidation potential than copper and silver, this does not directly explain why zinc can displace copper and silver from their salts.

Therefore, Option 1 is incorrect because the Reason does not provide a correct explanation for the Assertion.

Option 2 states that both Assertion A and Reason R are individually true, but Reason R is not the correct explanation of Assertion A. This is the correct answer because Assertion A is true but Reason R is false.

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