The decreasing order of electrical conductivity of the following aqueous solutions is:

(A) 0.1 M Formic acid, (B) 0.1 M A\cetic acid, (C) 0.1 M Benzoic acid.

Question

The decreasing order of electrical conductivity of the following aqueous solutions is: (A) 0.1 M Formic acid, (B) 0.1 M A acid, (C) 0.1 M Benzoic acid.

Paaras Thakur · Accepted Answer

(A) (C) (B). Strategy: For weak acids of the same concentration, conductivity is proportional to the number of ions, which depends on the acid dissociation constant (Ka). Higher Ka higher of dissociation. Comparison of Acid Strengths: 1. Formic acid (A): The strongest among the three due to lack of bulky/donating groups. (Highest Ka) 2. Benzoic acid (C): Intermediate strength. 3. A acid (B): Weakest among the three because the -CH3 group is +I (inductive) and redu acidity. (Lowest Ka) Order of conductivity: A C B. {{Answer: (b) (A) (C) (B)}}

Answer

(A) (B) (C)

Answer

(A) (C) (B)

Answer

(C) (B) (A)

Answer

(C) (A) (B)

The decreasing order of electrical conductivity of the following aqueous solutions is: (A) 0.1 M Formic acid, (B) 0.1 M…

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