Paper: CSIR-NET June 2015 · Subject: Physical Chemistry · Chapter: Electrochemistry · Topic: Conductance · Marks: 2 · Difficulty: Medium
Conductometric titration of a strong acid with a strong alkali (MOH) shows linear fall of conductance up to neutralization point because of
(a)formation of water
(b)increase in alkali concentration
(c)faster moving $\mathrm{H^{+}}$ being replaced by slower moving $\mathrm{M^{+}}$.
(d)neutralization of acid.
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
During the titration each fast-moving H⁺ (λ ≈ 350) is replaced by a slow M⁺ (λ ≈ 50–75), so conductance falls linearly until the equivalence point, then rises as excess OH⁻ is added.