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Organic Chemistry MCQs

Study key concepts of Organic Chemistry with our structured Organic Chemistry MCQs, tailored for students, teachers, and job seekers preparing for science and chemistry-related exams. These multiple-choice questions cover hydrocarbons, functional groups, alcohols, alkyl halides, carboxylic acids, amines, esters, aromatic compounds, reaction mechanisms, IUPAC nomenclature, stereochemistry, and organic synthesis pathways. Frequently asked in exams conducted by PPSC, FPSC, CSS, NTS, SPSC, BPSC, KPSC, ETEA, AJKPSC, and in tests for Lecturer Chemistry, Medical Colleges, and Pharmaceutical roles.

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1 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

2 Organic Chemistry MCQs

Which of the following compounds will show acidic character?

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

Explanation:

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

3 Organic Chemistry MCQs

Alkenes are produced from dehalogenation of ?

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

Explanation:

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

4 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

5 Organic Chemistry MCQs

Which one of the following compounds is known as Chloroform?

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

Explanation:

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

6 Organic Chemistry MCQs

Which gas is used for artificial ripening of fruits?

  • Ethane
  • Ethene
  • Ethyne
  • Methane
0 Comments
Correct Answer: B. Ethene

Explanation:

Ethene (C₂H₄), also known as ethylene, is a simple unsaturated hydrocarbon containing a ... Read More Details

7 Organic Chemistry MCQs

Preparation of vegetable ghee involves ?

  • Halogenation
  • Hydroxylation
  • Hydrogenation
  • Hydration
0 Comments
Correct Answer: C. Hydrogenation

Explanation:

The preparation of vegetable ghee is based on a chemical process called hydrogenation ... Read More Details

8 Organic Chemistry MCQs

Which compound is known as methyl cyanide?

  • CH₃NH₂
  • CH₃NO₂
  • CH₃CN
  • CH₂ = CH–CN
0 Comments
Correct Answer: C. CH₃CN

Explanation:

Methyl cyanide (CH₃CN) is an organic compound belonging to the nitrile family. Its ... Read More Details

9 Organic Chemistry MCQs

When one hydrogen atom is removed from an alkane, it is called ?

  • Alkene
  • Alkyl
  • Aldehyde
  • Saturated hydrocarbon
0 Comments
Correct Answer: B. Alkyl

Explanation:

In organic chemistry, alkanes are the simplest hydrocarbons, consisting only of single bonds ... Read More Details

10 Organic Chemistry MCQs

Sabatier–Senderens reaction involves _____________ in the presence of Ni?

  • Alkene & H₂
  • Alkene & O₂
  • Alkene & N₂
  • Alkyne & Cl₂
0 Comments
Correct Answer: A. Alkene & H₂

Explanation:

The Sabatier–Senderens reaction is an important hydrogenation process in organic chemistry, discovered by ... Read More Details

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