Q69 · CSIR-NET Chemistry, December 2015
Paper: CSIR-NET December 2015 · Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Main Group Elements – General · Marks: 2 · Difficulty: Medium
Protonated form of ZSM-5 catalyzes the reaction of ethene with benzene to produce ethylbenzene. The correct statement for this catalytic process is
(a)alkyl carbocation is formed
(b)carbanion is formed
(c)benzene converted to $\left(\mathrm{C}_{6} \mathrm{H}_{5}\right)^{+}$group
(d)vinyl radical is formed
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
The Brønsted acid sites of H-ZSM-5 protonate ethene to an ethyl carbocation, which alkylates benzene (Friedel–Crafts type).
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