Q88 · CSIR-NET Chemistry, June 2015
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
Fast H⁺ (λ ≈ 350) is replaced by slow M⁺ (λ ≈ 50–75) as the base is added, so conductance falls linearly until the equivalence point.
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