The correct order of increasing bond length of 

C-H, C-O, C-C and C=C is

(a) C-C<C=C<C-O<C-H

(b) C-O<C-H<C-C<C=C

(c) C-H<C-O<C-C<C=C

(d) C-H<C=C<C-O<C-C

Concept Videos :-

#4 | Covalency

Concept Questions :-

Covalent Bonding

(d) C-H: 0.109 nm

    C=C: 0.134 nm

    C-O: 0.143 nm

    C-C: 0.154 nm

... Bond length order is

    C-H<C=C<C-O<C-C

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