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Which of the statements is/are correct ?...

Which of the statements is/are correct ?

A

(a) Diels - Alder reaction is an electrocyclic reaction.

B

(b) Both thermal stability and probability (entropy) factors are responsible for affecting the formation of cycloalkanes by intramolecular cyclisation.

C

(c)
The intermediate in the above reaction is `C^(-)CIBrI`.

D

(d)
The above step proceeds by SN mechanism (substitution by nucleophile).

Text Solution

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The correct Answer is:
B, D
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