1.

Which of the following acids is the strongest ?

Answer»

`HCN(K_(a)=4xx10^(-10))`
`HS^(-)(K_(a)=1XX10^(-14))`
`HCO_(3)^(-)(K_(a)=4.8xx10^(-11))`
`HAsO_(4)^(2-)(K_(a)=3XX10^(-13))`

Solution :Stronger acid has HIGHER `K_(a)` value.


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