1.

If the bond dissociation energies of XY, X_(2) and Y_(2) (all diatomic molecules) are in the ratio of 1 : 1 : 0.5 and Delta_(f)H for the formation of XY is –200 kJ mol^(-1). The bond dissociation energy of X_(2) will be

Answer»

200 kJ `MOL^(-1)`
100 kJ `mol^(-1)`
800 kJ `mol^(-1)`
300 kJ `mol^(-1)`

Answer :C


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