Question

Select the correct statement(s) regarding the product C in the above reaction sequence.

• A. It gives a yellow precipitate with $NaOI$.
• B. It's final oxidation product is a carbonyl compound.
• C. It's final oxidation product is $C{O}_2$ and $H_{2}O$.
• D. It's final oxidation product is $C{H}_{3}COOH$.

Answer 1

Answer: (A), (D)

The correct options are
A It gives a yellow precipitate with $NaOI$.
D It's final oxidation product is $C{H}_{3}COOH$.

The reaction sequence is:
$Ca{C}_2\stackrel{H_{2}O}{\to }{C}_2{H}_2\underset{H{g}^{+2}}{\overset{dil.H_{2}S{O}_4}{\to }}C{H}_{3}CHO\underset{H_2}{\overset{Ni}{\to }}C{H}_{3}C{H}_{2}OH$
Here, the final product C is ethanol. It can give a positive haloform reaction and can give yellow precipitate with $NaOI$. The final oxidation product of ethanol is ethanoic acid, i.e., $C{H}_{3}COOH$.