Question

The presence of carbon in an organic compound can be shown by.

• A. Heating the compound with sodium
• B. Heating the compound with cupric oxide
• C. Heating the compound on Bunsen flame
• D. Heating the compound with magnesium.

Answer 1

Answer: (B)

Heating the compound with cupric oxide

Answer 2

: Compound when heated with CuO reduces CuO to Cu and oxidizes C to $CO_{2}$ which truns lime water milky.

}{CO_{2} + Ca(OH)_{2} \rightarrow \underset{(Milky)}{CaCO_{3}} + H_{2}O}$$