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

Options

A. `I lt II lt III, IV`
B. `I lt IV lt II lt III`
C. `IV lt III lt II lt I`
D. `III lt IV lt II lt I`

Answer

B

Explanation

`C-C` is the longest of all and `C-O` is longer than `C = C`.
` C – H` bond is shortest because of small size of H.
Double bond is smaller than single bond because of more s character.
`C-H lt C=C lt C -O lt C -C`