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pH of soluiotn obtained by mixing 50ml o...

pH of soluiotn obtained by mixing 50ml of 0.1M `Na_(2)CO_(3)` solution and 50 ml of 0.05 M HCl solution is
where `K_(a_(1))` and `K_(a_(2))` are first and second dissociation constants of `H_(2)CO_(3)` respectively.

A

`( pKa_(a_(1))+pK_(a_(2)))/(2)`

B

`pK_(a_(2)) - log_(10) 2`

C

`pK_(a_(2))`

D

`pK_(a_(1))= log_(10) 2`

Text Solution

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The correct Answer is:
C
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