The dissociation constant of HCN is \[5\times {{10}^{-10}}\]. The \[pH\] of the solution prepared by mixing 1.5 mole of HCN and 0.15 moles of KCN in water and making up the total volume to \[0.5\,d{{m}^{3}}\] is [JIPMER 2001]

The dissociation constant of HCN is \[5\times {{10}^{-10}}\]. The \[pH

1.	The dissociation constant of HCN is \[5\times {{10}^{-10}}\]. The \[pH\] of the solution prepared by mixing 1.5 mole of HCN and 0.15 moles of KCN in water and making up the total volume to \[0.5\,d{{m}^{3}}\] is [JIPMER 2001]
A.	7.302
B.	9.302
C.	8.302
D.	10.302
Answer» D. 10.302

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The dissociation constant of HCN is \[5\times {{10}^{-10}}\]. The \[pH\] of the solution prepared by mixing 1.5 mole of HCN and 0.15 moles of KCN in water and making up the total volume to \[0.5\,d{{m}^{3}}\] is [JIPMER 2001]

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