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An acid-base indicator (PK(a) =4.5271) ...

An acid-base indicator (`PK_(a) =4.5271`) has the acid form red and basic form blue. If we need 75% red to be converted into 75% blue form in solution, the change in pH of solution should be:

A

4.05

B

`5.0`

C

0.95

D

`0.80`

Text Solution

Verified by Experts

The correct Answer is:
C
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