Question

A product obtained on addition of HBr to 2-methyl-but-2-ene
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Answer 1

Answer:

The reaction of 2-methylbut-2-ene with HBr yields 2-bromo-2-methylbutane as the major product, a typical Markovnikov addition, with rather small amounts of 1-bromo-2-methylbutane, so the reaction is highly regioselective. ... Addition of HBr generates a carbocation, with the charge residing on the more substituted carbon.