Which one of the following reagent can differentiate between `C_(2)H_(4)OH and CH_(3)OH`?

Options

A. `H_(2)O`
B. `Na_(2)CO_(3)+I_(2)`
C. `NH_(3)`
D. `HCl`

Answer

B

Explanation

`CH_(3)OH and C_(2)H_(5)OH` can be differentiated by using `Na_(2)CO_(3)` and `l_(2)` (Iodoform test). `C_(2)H_(5)OH` gives yellow precipitate of `CHl_(3)` whereas `CH_(3)OH` does not react with it.
`C_(2)H_(5)OH+4I_(2)+Na_(2)CO_(3)rarrunderset("(yellow ppt.)")underset("lodoform")(CHI_(3))`
`CH_(3)OH+I_(2)+Na_(2)CO_(3) rarr "No reaction"`