Product of hydroboration-oxidation of an alkene

This type of question, asked 3 times: 16 May 2023 S1, 20 Apr 2025 S2, 18 Apr 2026 S1. All 3 questions below, oldest first.

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Question 1
16 May 2023 S1
63 $What is the product of Hydroboration-oxidation of but-1-ene?$
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Question 2
20 Apr 2025 S2
99 $Propene on hydroboration followed by oxidation with alkaline peroxide forms.$
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Question 3
18 Apr 2026 S1
38 $Which from following is obtained by hydroboration - oxidation of propene?$
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