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Question

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


A
C>B>A
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B
A>B>C
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C
A>C>B
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D
C>A>B
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Solution

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:
$$A>C>B$$

Chemistry

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