Carbon and hydrogen are normally detected by strongly heating the organic compound with

Options

A. `Cu_(2)O`
B. `Cu`
C. `CuO`
D. `CuSO_`

Answer

C

Explanation

Carbon present is oxidized to `CO_(2)` (tested by limewater) and hydrogen to `H_(2)O` (tested by anhydrous copper sulphate).
`C underset (Delta) overset(CuO)rarr CO_(2) overset(Ca(OH)_(2))rarr CaCO_(3) darr`
`H underset (Delta) overset(CuO)rarr CO_(2) overset(CuSO_(4))rarr CuSO_(4).5H_(2)O`