Question

Compare the C-Cl bond length in the following *CH2=CH-Cl (1) and CH3-CH2-Cl (2)*

* photo inserted above​

Answer 1

Explanation:

Explanation is as follows: (1) C-Cl bond length is shorter in CH2=CH-Cl (vinyl chloride) than CH3CH2Cl (Ethyl chloride) is due to the lone pairs on Chlorine are involved in resonance with C=C bond which imparts partial double bond character in C-Cl bond.

hope this helps

Answer 2

Answer:

The bond length of the C-Cl bond in CH₃-CH₂-Cl will be more as compared to CH₃-CH₂-Cl.

Explanation:

• The average distance between the nuclei of two bound atoms in a molecule is known as the bond length.
• Alkyl chlorides have longer carbon-chlorine (C-Cl) bonds than alkenes because alkenes have more of an "s" character, which securely holds the electronegative chloride ions towards themselves.

Now let's see the compounds given in the question.

(1)CH₂=CH-Cl⇒ 1-chloro-eth-2-ene (Alkene)                 (a)

(2)CH₃-CH₂-Cl⇒1-Chloro-Ethane(Alkane)                      (b)

So, the chlorine in alkene will show a double bond character resulting in a decrease in bond length. The bond length of the C-Cl bond in CH₃-CH₂-Cl will be more as compared to CH₃-CH₂-Cl.

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