Explore topic-wise MCQs in Organic Chemistry.

This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Organic Chemistry knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of the following aldehyde is most soluble in water?

A. Acetaldehyde
B. Formaldehyde
C. Butyraldehyde
D. Benzaldehyde
Answer» C. Butyraldehyde
2.

Which of the following is the characteristic smell of benzaldehyde?

A. Fish like smell
B. Bitter almond like
C. Pungent smell
D. Rotten egg like smell
Answer» C. Pungent smell
3.

Which of the following compound has more boiling point than aldehyde?

A. Alcohol
B. Alkanes
C. Ketones
D. Ether
Answer» B. Alkanes
4.

What is the chemical shift of formyl hydrogen in aldehyde?

A. 6
B. 7
C. 8
D. 9
Answer» E.
5.

WHICH_OF_THE_FOLLOWING_ALDEHYDE_IS_MOST_SOLUBLE_IN_WATER??$

A. Acetaldehyde
B. Formaldehyde
C. Butyraldehyde
D. Benzaldehyde
Answer» C. Butyraldehyde
6.

Which of the following is the characteristic smell of benzaldehyde?

A. Fish like smell
B. Bitter almond like
C. Pungent smell
D. Rotten egg like smell
Answer» C. Pungent smell
7.

Which of the following compound has more boiling point than aldehyde?

A. Alcohol
B. Alkanes
C. Ketones
D. Ether
Answer» B. Alkanes
8.

Which of the following aldehyde is present as gas?

A. Acetaldehyde
B. Formaldehyde
C. Butyraldehyde
D. Benzaldehyde
Answer» C. Butyraldehyde
9.

What is the chemical shift of formyl hydrogen in aldehyde?

A. 6
B. 7
C. 8
D. 9
Answer» E.
10.

In Infrared spectroscopy, at what wave number will band of CO bond of aldehyde will occur?

A. 1500 cm<sup>-1</sup>
B. 1495 cm<sup>-1</sup>
C. 1965 cm<sup>-1</sup>
D. 1700 cm<sup>-1</sup>
Answer» E.
11.

What will be the product if we add water to the aldehyde?

A. Alcohols
B. Epoxides
C. Geminal diols
D. Peroxides
Answer» D. Peroxides
12.

Which of the following aldehyde shows oligomerization?

A. Acetaldehyde
B. Propanal
C. Butanal
D. Benzaldehyde
Answer» B. Propanal
13.

What is the name of the process in which aldehyde get oxidise in presence of air?

A. Calcination
B. Autoxidation
C. Cannizzaro reaction
D. Baeyer villiger oxidation
Answer» C. Cannizzaro reaction
14.

Aldehydes have which type of smell?

A. Fish like smell
B. Bitter almond smell
C. Pungent smell
D. Rotten egg like smell
Answer» D. Rotten egg like smell