Multiple choice

Directions: The followings item consist of two statements, one labeled as the 'Assertion (A)' and the other as 'Reason (R)'. You are to examine these two statements carefully and select the answer to these items using the codes given below.

Assertion (A): The conductance of a solution of an electrolyte increases with rise in temperature. Reason (R): The number of ions present in unit volume of a solution increases with rise in temperature.

  1. Both A and R are individually true and R is the correct explanation of A

  2. Both A and R are individually true but R is NOT the correct explanation of A

  3. A is true but R is false

  4. A is false but R is true

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The conductance (ability to conduct electricity) of an electrolyte solution does increase with temperature - Assertion A is correct. This happens because increasing temperature provides more kinetic energy to ions, reducing the attractive forces between them and increasing their mobility. As ions move more freely, they carry current more effectively. Reason R correctly identifies that this is related to increased ionic mobility, making it the correct explanation for the observed increase in conductance.

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