The electrophile used in the sulfonation of b | vedclass

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Question

(B) The sulfonation of benzene is carried out using concentrated sulfuric acid $(H_2SO_4)$ or fuming sulfuric acid ($H_2SO_4 + SO_3$,known as oleum).I

Vedclass · Accepted Answer

$SO_3$

Vedclass · Answer

(B) The sulfonation of benzene is carried out using concentrated sulfuric acid $(H_2SO_4)$ or fuming sulfuric acid ($H_2SO_4 + SO_3$,known as oleum).In this reaction,sulfur trioxide $(SO_3)$ acts as the electrophile.$SO_3$ is a neutral electrophile because the sulfur atom is electron-deficient due to the high electronegativity of the three oxygen atoms bonded to it.Therefore,the correct option is $B$.

The electrophile used in the sulfonation of benzene is..........

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