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pH of a 10^(-10) M NaOH is nearest to...

`pH` of a `10^(-10) M NaOH` is nearest to

A

`10`

B

`7`

C

4

D

10

Text Solution

Verified by Experts

The correct Answer is:
B
Total `[OH^(-)] = 10^(-10) + 10^(-7)`
`= 10^(-7)[10^(-3) + 1]`
`P^(OH) = 7 "log" 10-"log" 1.001`
`= 7` (nearly)
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