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31. Which of the statement(s) regarding hydroboration is(are) true? I. The reaction with terminal olefins is regioselective.
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A) I and IV

Hydroboration undergoes cyclic transition state and it follows anti-markovnikov to hydrate alkenes and it never forms a carbocation. In the first step of hydroboration, the addition of HBr takes places. Bond breaking and bond formation occur at the same time. Boron is attached to less substituted carbon and hydrogen is attached to carbon having fewer hydrogens. Its reaction with terminal olefins is regioselective.

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