Question

List-A	List-B
Aldehyde	Oxidised product of Aldehyde
1. Formaldehyde	A. Acetic Acid
2. Acetaldehyde	B. Propanoic acid
3. Propionaldehyde	C. Isobutyric acid
4. Isobutyraldehyde	D. Methanoic acid

Match the contents in List-A to that in List-B.

• A. 1-D, 2-A, 3-B, 4-C
• B. 1-A, 2-D, 3-C, 4-B
• C. 1-A, 2-C, 3-D, 4-B
• D. 1-D, 2-B, 3-C, 4-A

Answer 1

Answer: (A)

1-D, 2-A, 3-B, 4-C

Formaldehyde $\left(HCHO\right)$ on oxidation gives methanoic acid $\left(HCOOH\right)$.

Acetaldehyde $\left(C{H}_{3}CHO\right)$ on oxidation gives acetic acid $\left(C{H}_{3}COOH\right)$.

Propionaldehyde $\left(C{H}_{3}C{H}_{2}CHO\right)$ on oxidation gives propanoic acid $\left(C{H}_{3}C{H}_{2}COOH\right)$.

Isobutyraldehyde $\left(C{H}_{3}CH\right(C{H}_3\left)CHO\right)$ on oxidation gives isobutyric acid $\left(\right(C{H}_{3}CH\left(C{H}_3\right)COOH)$.

Option A is correct.