1.

For which of the following reactions, the degree of dissociation cannot be calculated applying the formula: alpha=(dt-d_(0))/((n-1)d_(0))

Answer»

`PCl_(5)hArrPCl_(3)+Cl_(2)`
`2NH_(2)hArrN_(2)+3H_(2)`
`2HIhArrH_(2)+I_(2)`
`2KClO_(3)hArr2KCl+3O_(2)`

ANSWER :C


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