Which of the following statement(s) is/are true for Diels

Engineering

Chemistry

Electrophilic addition

Electrophilic substitution

Carbene carboxylic acid

Question

Which of the following statement(s) is/are true for Diels–Alder reaction?

an electron-donating substituent in the diene increases reaction rate

an electron-withdrawing substituent in the dienophile increases rate

The product obtained from the reaction of 1,3-butadiene with trans-1,2-dichloroethene is optically inactive.

The product obtained from the reaction of 1,3-butadiene with cis-1,2-dichloroethene is optically inactive.

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(A), (B) Electron donating group in diene & e^– withdrawing group is dienophile favours Diels-Alder reaction.
(C), (D) Configuration of Dienophile is retained is Diels Alder reaction.