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A 0.010M solution of maleic acid, a mono...

A 0.010M solution of maleic acid, a monoprotic organic acid is 14% ionised. What is `K_(a)` for maleic acid ?

A

`2.3 xx 10^(-3)`

B

`2.3 xx 10^(-4)`

C

`2.0 xx 10^(-4)`

D

`2.0 xx 10^(-6)`

Text Solution

Verified by Experts

The correct Answer is:
C
C = 0.01 , `alpha = 0.14`
`K_(a) = C . alpha^(2) = 0.01 xx (0.14)^(2)`
` approx 2 xx 10^(-4)`
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