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What are X and Y in the following reacti...

What are X and Y in the following reactions ?
`CH_(2)O underset((ii)H_(3)O^(+))overset((i)X)toCH_(3)(CH_(2))_(2)OH`
`Yunderset((i)H_(3)O^(+))overset((i)C_(2)H_(5)MgBr)to CH_(3)CH_(2)C(CH_(3))_(2)OH`

A

`CH_(3)-underset(CH_(3))underset(|)overset(X)(CH)-MgBr" "C_(2)H_(5)overset(Y)(COCH_(3))`

B

`CH_(3)-underset(CH_(3))underset(|)overset(X)(CH)-MgBr" "C_(2)H_(5)overset(Y)(COCH_(3))`

C

`CH_(3)-underset(X)(CH_(2))-MgBr" "underset(Y)(CH_(3)CH_(2) CHO)`

D

`(CH_(3))_(3)CMgBr" "CH_(3)-CO-CO_(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
`- CH_(2) Oi.eHCOOHoverset((i)CH_(3).CH_(2).CH_(2).MgBr)tounderset((ii)darrH_(3)O^(+))underset(OMgCH_(2)CH_(2)CH_(3))underset(|)(H-C-H)`
`CH_(3) COCH_(3) overset(C_(2).H_(5).MgBr)tounderset(CH_(3).CH_(2).COC(CH_(3))_(2).OH)underset(darrH_(3)O^(+))underset(OMgBr)underset(|)(CH_(3)-C-C_(2)H_(5))`
`:.(X) = CH_(3) .CH_(2). CH_(2) MgBr`
`(Y) = CH_(3) . CO . CH_(3)`
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