Home Physics Heating and Chemical Effect of Current Chemical Effect of Current The mass of a substance liberated when a cha…
Physics Heating and Chemical Effect of Current Chemical Effect of Current Single Correct MCQ
Published on: September 12, 2026

The mass of a substance liberated when a charge ‘q’ flows through an electrolyte is proportional to

A
q
B
1/q
C
q 2
D
1/q 2

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Text Solution

Verified by Experts
The correct answer is:
A
Step 1: Understand Faraday's laws of electrolysis. According to Faraday's First Law of Electrolysis, the mass of a substance liberated during electrolysis is proportional to the quantity of electric charge (q) that passes through the electrolyte.
Step 2: Mathematically, this can be represented as:
m = k imes q, where m is the mass of the substance liberated, k is a proportionality constant, and q is the total electric charge.
Step 3: Thus, since the mass is directly proportional to the charge, we conclude that the correct answer is option A: q.
Therefore, A.

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