1.

An organic compound A reacts with PCl_5 to give B. The compound B with sodium metal gives n-butane. Thus A and B are :

Answer»

`C_2H_5OH` and `C_2H_5Cl`
`C_2H_5Cl and C_2H_5ONa`
`C_3H_7OH and CH_3CH_2CH_2Cl`
`C_4H_9OH and C_4H_9OCl`

ANSWER :A


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