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Model Paper 6 — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryModel Paper 61 Mark
MCQ
Addition of cold conc. $H _2 SO _4$ with alkenes is an example of
  • A
    nucleophilic addition reaction
  • B
    electrophilic substitution reaction
  • ✓
    electrophilic addition reaction
  • D
    nucleophilic substitution reaction
✓

Answer

Correct option: C.
electrophilic addition reaction
(c) electrophilic addition reaction
Explanation: The electrophilic addition reaction between ethene and sulfuric acid. Alkenes react with concentrated sulfuric acid in the cold to produce alkyl hydrogensulphates. For example, ethene reacts to give ethyl hydrogensulphate.

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