CBSE 2024 · Region 3 · Set 2 · Q20 · 2 marks
(a)Which halogen compound in the following pair will react faster in $\displaystyle \mathrm{S}_{\mathrm{N}} 1$ reaction and why ?
or
(b) Why is the dipole moment of chlorobenzene lower than that of cyclohexyl chloride ?
(a)
Which halogen compound in the following pair will react faster in $\displaystyle \mathrm{S}_{\mathrm{N}} 1$ reaction and why ?
or
(b) Why is the dipole moment of chlorobenzene lower than that of cyclohexyl chloride ?
Marking-scheme solution
(a)
Due to stability of tertiary carbocation/due to stable
(b)
Due to \(\displaystyle \mathrm{C}-\mathrm{Cl}\) bond in chlorobenzene is \(\displaystyle \mathrm{sp}^{2}\) hybridised whereas in cyclohexyl chloride \(\displaystyle \mathrm{C}-\mathrm{Cl}\) bond is \(\displaystyle \mathrm{sp}^{3}\) hybridised .
Haloalkanes and HaloarenesChemical Reactions of Haloalkanes and HaloarenesUnderstandvery_short_answermedium
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CBSE Class 12 Chemistry past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.