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1 Organic Chemistry MCQs

Alkanes containing a methyl group on the second carbon of the main chain are called ?

  • Iso-alkane
  • Normal-alkane
  • Neo-alkane
  • Branched-alkane
0 Comments
Correct Answer: A. Iso-alkane

Explanation:

Alkanes are hydrocarbons containing only single carbon–carbon bonds and are classified based on ... Read More Details

2 Organic Chemistry MCQs

Alkanes are also known as ?

  • Saturated hydrocarbon
  • Unsaturated hydrocarbon
  • Paraffins
  • Both A & C
0 Comments
Correct Answer: C. Paraffins

Explanation:

Alkanes are a class of hydrocarbons that contain only single bonds between carbon ... Read More Details

3 Organic Chemistry MCQs

Hydrogenolysis results in the formation of ?

  • Alkane
  • Alkene
  • Alkyne
  • Aldehydes
0 Comments
Correct Answer: A. Alkane

Explanation:

Hydrogenolysis is an organic reaction in which a chemical bond, usually a carbon–heteroatom ... Read More Details

4 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

5 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

6 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

7 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

8 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

9 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

10 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