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  4. When solid potassium cyanide is added in water then

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Q. When solid potassium cyanide is added in water then

Haryana PMTHaryana PMT 2011

Solution:

Potassium cyanide is the salt of strong base and weak acid, hence when it is added in water then pH will increase.
$ KCN + \underset{\text{strong base}}{H_2OKOH} + \underset{\text{weak acid}}{HCN}$