1.

The correct order or increasing bond length C - H , C - O , C - C and C = C is-

Answer»

`C-HltC-OltC-CltC=C`
`C-HltC=CltC-OltC-C`
`C-CltC=CltC-OltC-H`
`C-OltC-HltC-CltC=C`

SOLUTION :It is a FACT.


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