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How many moles of `BH_(3)` are needed to react completely with 2 mole of 1-pentene in hydroboration-oxidation reaction?

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How many moles of `BH_(3)` are needed to react completely with 2 mole of 1-pentene in hydroboration-oxidation reaction?
A. 2 mole
B. 3 mole
C. 2/3 mole
D. 3/2 mole
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Correct Answer - c
3 mole of alkene reacts with 1 mole of `BH_(3)`
`therefore` 2 mole of alkene `to 2//3` mole of `BH_(3)`
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