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CBSE Class 12 Chemistry 2014 Outside Delhi Set 1 Solved Paper

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Question : 17 of 30
Marks: +1, -0
Write the mechanism of the following reaction:
CH3CH2OHHBrCH3CH2Br+H2O\mathrm{CH}_3\mathrm{CH}_2\mathrm{OH} \xrightarrow{\mathrm{HBr}} \mathrm{CH}_3\mathrm{CH}_2\mathrm{Br} + \mathrm{H}_2\mathrm{O}
Solution:  
Mechanism:
(i) The oxygen lone pair attacks the HBr\mathrm{H}-\mathrm{Br} molecule, creating a hydronium ion.
(ii) Carbocation formation.
(iii) Attack of the Nucleophile Br\mathrm{Br}^{-}.
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