A

`PimpliesI`, Q and `RimpliesII`

B

P and Q both I and II, `RimpliesII`

C

P is both I and II, Q and `RimpliesII`

D

P, Q, and `Rimplies All II`

Text Solution

Verified by Experts

The correct Answer is:
B
Unsymmetrical alkyne gives two products with catalytic dehydration and with HBO reaction, whereas with `Sia_2BH+H_2O+overset(Θ)OH`, it gives only one product. More bulky `Sia_2BH` attacks on the less hindered triple bond to give only one product.
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