Question

Consider the molecular CH3-CH2-CH=CH2, The length of carbon-carbon bond decreases in the order ​

Answer 1

Answer:

Bond length is the average distance between nuclei of two bonded atoms in a molecule. Alkenes have more of s character so they tightly hold the electronegative chloride ions towards itself making C-Cl bond length shorter than alkyl chlorides. In aryl halides, the ring produces strain on Cl atom because of resonance and shows double bond character so it has shortest C-Cl bond length. Hence, the correct order is as follows:

CH

3

−CH

2

−Cl(i) > CH

2

=CH−Cl(ii) > C

6

H

5

−Cl(iii)

Explanation:

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