1. ⇒ (MHT CET 2023 12th May Morning Shift )

Identify product ' $B$ ' in following sequence of reactions.

2n Propanone $\overset{Ba {(OH)}_{2}}{⟶}$ A $⟶_{- H_{2} O}^{Δ}$ nB

A. 4-Hydroxy-4-methylpentan-2-one

B. 2-Methylpentan-3-one

C. 2-Methylpent-2-en-4-one

D. 4-Methylpent-3-en-2-one

Correct Option is (D)

MHT CET 2023 12th May Morning Shift Chemistry - Aldehyde and Ketone Question 1 English Explanation

2. ⇒ (MHT CET 2023 12th May Morning Shift )

What type of following phenomena does the Cannizzaro reaction exhibit?

A. Nucleophilic addition

B. Elimination

C. Disproportionation

D. Decomposition

Correct Option is (C)

Currently no explanation available

3. ⇒ (MHT CET 2023 11th May Morning Shift )

Identify the products of following reaction:

MHT CET 2023 11th May Morning Shift Chemistry - Aldehyde and Ketone Question 8 English

A. Methanoic acid and phenyl methanol

B. Methanol and benzoic acid

C. Methanol and phenol

D. Methanoic acid and phenol

Correct Option is (A)

When a mixture of methanal and benzene carbaldehyde (aldehyde with no $α$ -hydrogen) is treated with a strong base, methanal is oxidized to methanoic acid while benzene carbaldehyde is reduced to phenyl methanol.

MHT CET 2023 11th May Morning Shift Chemistry - Aldehyde and Ketone Question 8 English Explanation

4. ⇒ (MHT CET 2023 10th May Morning Shift )

Which among the following compounds is hemiacetal?

A. MHT CET 2023 10th May Morning Shift Chemistry - Aldehyde and Ketone Question 10 English Option 1

B. MHT CET 2023 10th May Morning Shift Chemistry - Aldehyde and Ketone Question 10 English Option 2

C. MHT CET 2023 10th May Morning Shift Chemistry - Aldehyde and Ketone Question 10 English Option 3

D. MHT CET 2023 10th May Morning Shift Chemistry - Aldehyde and Ketone Question 10 English Option 4

Correct Option is (B)

Hemiacetal is an alkoxyalcohol (has one $- OH$ and one $- {OR}^{'}$ group bonded to the central carbon atom). Hence, compound (B) is a hemiacetal.

5. ⇒ (MHT CET 2023 9th May Morning Shift )

Identify the product 'B' in following reaction.

Ethyl phenyl ketone $\overset{H_{2} N - N H_{2}}{⟶}$ A $⟶_{Δ}^{KOH, HO - {(C H_{2})}_{2} - OH}$

A. Phenylhydrazone

B. Ethyl benzene

C. n-Propyl benzene

D. Isopropyl benzene

Correct Option is (C)

MHT CET 2023 9th May Morning Shift Chemistry - Aldehyde and Ketone Question 11 English Explanation

⇒Aldehydes, Ketones and Carboxylic Acids