Which of the following statements is / are true :

Engineering

Chemistry

Nucleophilic Substitution

Electrophilic addition

Carbocation

Question

Which of the following statements is / are true :

$\overset{∙}{Cl} + \overset{∙}{H} \to_{}^{}$ HCl, is not the chain termination step during photochlorination of ethane.

Increase in the no. of phenyl ring at C of C–X causes a shift in mechanism from S_N2 to S_N1.

Major part of energy needed for the heterolysis of C–X bond in S_N1 reaction mechanism is obtained by the solvation of X– by the polar protic solvent.

1-pentene gives two bromoalkenes with NBS.

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1-pentene give four products with NBS

Due to formation of more stable carbocation on increasing phenyl ring at C of C—X.

There is no formation of $H^{∙}$ during photohalogenation