Question

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

• A. $C>B>A$
• B. $A>B>C$
• C. $A>C>B$
• D. $C>A>B$

Answer 1

The correct option is C $A>C>B$

Here all the given compounds are acids having equal concentration.

Thus here electrical conductivity depends upon there ions viz. is dependent on acidic strength

Order of acidic strength

$A>C>B$

Acidic strength Increase ⇒ degree of ionization increase.

Thus the correct order of electrical conductivity is:

$A>C>B$