Question

`R-CH_(2)-CH_(2)OH` can be converted into `RCH_(2)CH_(2)COOH` the correct sequence of reagent is:
A. `PBr_(3), KCN, H^(o+)`
B. `PBr_(3),KCN,H_(2)`
C. `KCN,H^(o+)`
D. `HCN,PBr_(3),H^(o+)`

Answer 1

Correct Answer - A
`RCH_(2)CH_(2)OH overset(PBr_(3))rarrRCH_(2)CH_(2)Br oversetKCN)rarr RCH_(2)CH_(2)CN overset(H_(2)O//H^(Theta))rarr RCH_(2)CH_(2)COOH`