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The concentration of [H^+] and concentra...

The concentration of `[H^+]` and concentration of `[OH^(-) ]` of a 0.1 aqueous solution of 2% ionised weak acid is ionic product of water `= 1 xx 10^(-14)`]

A

`2 xx 10^(-3)` M and ` 5 xx 10^(-12) M`

B

`1 xx 10^(-3) M and 5 xx 10^(-12) M`

C

`0.02 xx 10^(-3) M and 5 xx 10^(-11) M`

D

`3 xx 10^(-2) M and 4 xx 10^(-13) M`

Text Solution

Verified by Experts

The correct Answer is:
A
`[H^+] = C alpha = 0.1 xx 0.02 = 2 xx 10^(-3) M`
( As degree of dissociation =2 % = 0.02)
hence ` [OH^-] = (10^(14))/(2 xx 10^(-3)) =5xx 10^(-12) M`
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