1.

The decreasing order of bond dissociation energies of C-C,C-H and H-H bonds is

Answer»

`H-H gt -C-H gt -C-C-`
`-C-C-gt-C-HgtH-H`
`-C-Hgt-C-C-gtH-H`
`-C-C-gtH-Hgt-C-H`

Solution :The decreasing ORDER of bond DISSOCIATION ENERGIES of C-C, C-H and H-H bonds is as follows
`H-H gt-C-H gt-C-C-`


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