Organic Chemistry MCQ question and answer with solution

21

Cathode rays are a beam of

A) neutrons B) protons C) positrons D) electrons

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

22

One of the IUPAC names that is different given below. Select one of the names.

A) C₄H₈OH ⟶ Butanol ⟶ butyl alcohol B) C₃H₇OH ⟶ Propanol ⟶ propyl alcohol C) CH₃OH ⟶ Methanol ⟶ methyl alcohol D) C₂H₅OH ⟶ Ethanol ⟶ Ethyl alcohol

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

23

The example of the fermentation is

A) formation of wine through the juice of sugarcane B) appearance of the sourness the moist flour C) appearance of the sourness in the milk D) All of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

24

Fill in the blank with the most appropriate option.
Denaturation of ethanol is done for . . . . . . . .

A) to increase its stability B) making it unsuitable for drinking C) making it suitable for drinking D) making it suitable as antimicrobial

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

25

The common name for athenoic acid is . . . . . . . .

A) sodium hydroxide B) alcohol C) fuming acid D) acetic acid

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

26

Which of the following is used in the preparation of tincture iodine, cough syrup and many tonics?

A) methanol B) ethanoic acid C) acetic acid D) ethanol

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

27

Assertion (A) The main constituent of the liquid petroleum gas in methane,
Reason (R) Methane can be used directly for burning in homes and factories where it can be supplied through pipelines.

A) Both A and R are true and R is the correct explanation of A B) Both A and R are true, but R is not the correct explanation of A C) A is true, but R is false D) A is false, but R is true

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

28

What is the molecular formula of chloroform?

A) CCl₄ B) CHCl₃ C) CH₄ D) C₂H₆

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

29

Which of the following acids is in sour milk?

A) glycolic acid B) lactic acid C) citric acid D) tartaric acid

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

30

Aromatic compounds are

A) cyclic compounds B) aliphatic compounds C) saturated compounds D) All of the above

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Organic Chemistry MCQ question and answer with solution | Chemistry Gk MCQs