Which of the following statement is wrong ? .

Options

A. Using Beilstein's test, the presence of halogens in a compound can be tested
B. In Lassaigne's filtrate, the nitrogen in an organic compound is converted to `NaCN`.
C. Lassaign's test fail to identify nitrogen in diazo compound
D. In the estimation of carbon, an organic compound is heated with `CaO` in a combustion tube.

Answer

D

Explanation

In the estimation of canbon, the given organic compound containing carbon is heated with `CuO` and not with `CaO`.