Question

Convert calcium carbide to oxalic acid

Answer 1

who it is possible Cu-Cl not Convert in
(COOH)2

Answer 2

Explanation:

Step 1: Calcium carbide on treating with water gives ethyne

$CaC_2+H_2O\rightarrow CH\equiv CH$

Step 2: In alkaline medium,4 moles of  potassium permanganate reacts with ethyne to give oxalic acid:

$CH\equiv CH\overset{4KMnO_4/OH^-}\rightarrow (COOH)_2$