Q.

A graph is plotted between ∧C(molar conductance  at a  given concentration) vs C(C = concentration). A straight line with negative slope and positive y-intercept is obtained for all the following except

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a

CH3COONa

b

NH4OH

c

KCl

d

H2SO4

answer is B.

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Detailed Solution

∧C=∧o-AC (Debye Huckel equation) applicable to strong electrolytes only.       KCl, H2SO4, CH3COONa . . .strong electrolytes;  NH4OH ... weak electrolyte ∧O for NH4OH cannot be determined directly.
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