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An acid-base indicator has K(HIn)=3.0xx1...

An acid-base indicator has `K_(HIn)=3.0xx10^(-5).` The acid form of the indicator is red and the basic form is blue. The change in `[H^(+)]` required to change the indicator from `75%` red to `75%` blue is :

A

0.95

B

2.3

C

0.75

D

5

Text Solution

Verified by Experts

The correct Answer is:
A
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