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1 Organic Chemistry MCQs

Removal of carbon dioxide (CO₂) from a compound is called ?

  • Carboxylation
  • Decarboxylation
  • Esterification
  • Hydroxylation
0 Comments
Correct Answer: B. Decarboxylation

Explanation:

Decarboxylation is the process in which a molecule of carbon dioxide (CO₂) is ... Read More Details

2 Organic Chemistry MCQs

Molozonide is unstable and changes into ozonide on __________________?

  • Reduction
  • Oxidation
  • Hydrolysis
  • Rearrangement
0 Comments
Correct Answer: D. Rearrangement

Explanation:

When ozone reacts with an alkene, the reaction first forms an unstable intermediate ... Read More Details

3 Organic Chemistry MCQs

What is the compound R–Mg–Br called?

  • Grignard reagent
  • Metallic alkyl halide
  • Both A & B
  • Alkyl
0 Comments
Correct Answer: A. Grignard reagent

Explanation:

The compound R–Mg–Br is known as a Grignard reagent. It is an organometallic ... Read More Details

4 Organic Chemistry MCQs

Which of the following is the most reactive hydrocarbon?

  • Ethane
  • Ethyne
  • Ethene
  • Benzene
0 Comments
Correct Answer: C. Ethene

Explanation:

The reactivity of hydrocarbons depends on the type of bonding between carbon atoms ... Read More Details

5 Organic Chemistry MCQs

Introduction of a nitro group (–NO₂) in a molecule is called ?

  • Nitration
  • Halogenation
  • Sulphonation
  • Amination
0 Comments
Correct Answer: A. Nitration

Explanation:

Nitration is a fundamental chemical reaction in organic chemistry that involves the introduction ... Read More Details

6 Organic Chemistry MCQs

The gas used in the manufacture of urea fertilizer is ?

  • C₂H₆ (Ethane)
  • C₂H₄ (Ethene)
  • C₂H₂ (Ethyne)
  • CH₄ (Methane)
0 Comments
Correct Answer: D. CH₄ (Methane)

Explanation:

Urea fertilizer is one of the most important nitrogen-containing fertilizers used in agriculture. ... Read More Details

7 Organic Chemistry MCQs

Which of the following compounds will show acidic character?

  • Propyne
  • 1-Butyne
  • Ethyne
  • All of the above
0 Comments
Correct Answer: D. All of the above

Explanation:

The acidic character of alkynes arises from the presence of a hydrogen atom ... Read More Details

8 Organic Chemistry MCQs

Alkenes are produced from dehalogenation of ?

  • Dihalo alkane
  • Trihalo alkane
  • Vicinal dihalo alkane
  • Vicinal trihalo alkane
0 Comments
Correct Answer: C. Vicinal dihalo alkane

Explanation:

The process of dehalogenation involves the removal of halogen atoms from an organic ... Read More Details

9 Organic Chemistry MCQs

In unsaturated hydrocarbons, electrons favor ?

  • Less reactivity
  • Addition reactions
  • Substitution reactions
  • None
0 Comments
Correct Answer: B. Addition reactions

Explanation:

Unsaturated hydrocarbons include alkenes (C=C) and alkynes (C≡C) — compounds containing one or ... Read More Details

10 Organic Chemistry MCQs

Which one of the following compounds is known as Chloroform?

  • CH₂Cl₂
  • CH₃Cl
  • CHCl₃
  • CCl₄
0 Comments
Correct Answer: C. CHCl₃

Explanation:

Chloroform (CHCl₃), chemically known as trichloromethane, is a halogenated hydrocarbon formed by replacing ... Read More Details