1.

The heat of neutralisation of HCl by NaOH is-55.9 kJ/mol. If the heat of neutralisation of HCN by NaOH is -12.1 kJ/mol. The energy of disso-ciation of HCN is:

Answer»

`-43.8 KJ`
43.8kJ
68 kJ
`-68 kJ`

ANSWER :B


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