Question

Which of the following reagents convert propene to
1-propanol?
(a) H₂O , H₂SO₄ (b) Aqueous KOH
(c) MgSO₄, NaBH₄/H₂O (d) B₂H₆, H₂O₂, OH⁻

Answer 1

Answer:

d - B2H6 is the answer

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Answer 2

The following reagents convert propene to  1-propanol

(d) B₂H₆, H₂O₂, OH⁻

The conversion of propene to propanol is an example of Anti-Markonikoff addition.

This reaction is done in the presence of reagents like diborane (B₂H₆) and in the presence of hydrogen peroxide (H₂O₂) or peroxide ions.

Next, it is hydrolysed in the presence of aqueous OH⁻ (like KOH, NaOH) solutions to get the required 1-propanol.

If the reaction was done in the presence H₂O and aqeous KOH, Markonikoff's rule of addition is followed and we get propan-2ol as the product.

So, option (d) is correct.