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In which pair, second ion is more stable...

In which pair, second ion is more stable than first?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
C
`[OH^(-)]=sqrt(k_(h_(1))C_(1)+k_(h_(2)).C_(2))=sqrt((10^(-14)xx0.1)/(5xx10^(-9))+(10^(-14)xx0.1)/(1.25 xx 10^(-9)))`
`[OH^(-)]=10^(-3)`
`"pOH = 3 pH = 11"`
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