JEE Main 2022 · 28 Jul · Shift 1 · Chemistry Q73

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ChemistrySingle correct+4 / -1Question 73 of 90

Choose the correct option for the following reactions.

3,3-Dimethylbut-1-ene, (CH3)3C-CH=CH2: with (BH3)2 then H2O2/OH⁻ gives B; with Hg(OAc)2, H2O then NaBH4 gives A.

'A' and 'B' are both Markovnikov addition products.

'A' is Markovnikov product and 'B' is anti-Markovnikov product.

'A' and 'B' are both anti-Markovnikov products.

'B' is Markovnikov and 'A' is anti-Markovnikov product.

Answer and worked solution

Official answer: B

Two routes. Oxymercuration-demercuration (A) gives the Markovnikov alcohol without rearrangement. Hydroboration-oxidation (B) gives the anti-Markovnikov alcohol.

(B)

Topics:Alkenes Alcohols

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JEE Main 2022 · 28 Jul · Shift 1, Chemistry question 73