Question

What property (or test) differentiates amide from ester?

Answer 1

See below

Explanation:

If amide is heated with aqueous solution of `NaOH` pungent smelling `NH_3` gas is produced which does not occurs in case of an ester where sweet smelling alcohol will be produced.. Thus they can be distinguished

`RCONH_2+NaOH->RCOONa+NH_3(g)`
`RCOOR_1+NaOH->RCOONa+R_1OH`