Equimolar solutions of HF,HCOOH and HCN at 298 K have the values of Ka as 6.8×10−4,1.8×10−4 and 4.8×10−9 respectively. What will be the order of their acidic strength?
A
HF>HCN>HCOOH
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B
HF>HCOOH>HCN
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C
HCN>HF>HCOOH
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D
HCOOH>HCN>HF
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Solution
The correct option is CHF>HCOOH>HCN solution which has higher Ka value will have more acidic strength .