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MHT CET Chemistry question

ChemistryEquilibriumMHT CET

The of HCN is 9.30. The pH of a solution prepared by mixing 2.5 moles of KCN and 2.5 moles of HCN in water and making up the total volume of 500 mL, is

Answer: (A)

Solution

Equal moles of salt and acid give ;

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Question ID VK-059118