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1 Organic Chemistry MCQs

When phenol is heated with concentrated nitric acid, the product formed is ____________?

  • Picric acid
  • o-Nitrophenol
  • 1,3,5-Trinitrobenzene
  • p-Nitrophenol
0 Comments
Correct Answer: A. Picric acid

Explanation:

Phenol is an aromatic compound with a hydroxyl group (-OH) attached to a ... Read More Details

2 Organic Chemistry MCQs

Which compound shows hydrogen bonding?

  • C₂H₆ (Ethane)
  • C₂H₅Cl (Ethyl chloride)
  • CH₃OCH₃ (Dimethyl ether)
  • C₂H₅OH (Ethanol)
0 Comments
Correct Answer: D. C₂H₅OH (Ethanol)

Explanation:

Hydrogen bonding is a special type of dipole–dipole interaction that occurs between a ... Read More Details

3 Organic Chemistry MCQs

Methyl alcohol is not used as ____________?

  • A solvent
  • An antifreezing agent
  • A substitute for petrol
  • For denaturing of ethyl alcohol
0 Comments
Correct Answer: C. A substitute for petrol

Explanation:

Methyl alcohol, also known as methanol (CH₃OH), is the simplest aliphatic alcohol. It ... Read More Details

4 Organic Chemistry MCQs

Which alcohol can be prepared by fermentation?

  • CH₃OH (Methanol)
  • C₃H₇OH (Propanol)
  • CH₃–CH₂–OH (Ethanol)
  • C₆H₅OH (Phenol)
0 Comments
Correct Answer: C. CH₃–CH₂–OH (Ethanol)

Explanation:

Fermentation is one of the oldest biochemical processes used for the preparation of ... Read More Details

5 Organic Chemistry MCQs

When alcohol reacts with phosphorus halides, it gives _____________?

  • Alkyl halides
  • Alkyl amines
  • Alkanes
  • Alkynes
0 Comments
Correct Answer: A. Alkyl halides

Explanation:

Alcohols undergo substitution reactions with phosphorus halides to form alkyl halides. The hydroxyl ... Read More Details

6 Organic Chemistry MCQs

Which one of the following compounds does not contain an –OH group?

  • Ethylene glycol
  • Glycerol
  • Picric acid
  • Ethyl acetate
0 Comments
Correct Answer: D. Ethyl acetate

Explanation:

The hydroxyl group (–OH) is the functional group present in alcohols and phenols. ... Read More Details

7 Organic Chemistry MCQs

Ethers show functional group isomerism with which compound?

  • Aldehydes
  • Ketones
  • Alcohols
  • Carboxylic acids
0 Comments
Correct Answer: C. Alcohols

Explanation:

Ethers are organic compounds that have the general formula R–O–R′, where two alkyl ... Read More Details

8 Organic Chemistry MCQs

Which compound is also called lactic acid?

  • 3-Hydroxypropanoic acid
  • 2-Hydroxypropanoic acid
  • 2-Hydroxybutanoic acid
  • 3-Hydroxybutanoic acid
0 Comments
Correct Answer: B. 2-Hydroxypropanoic acid

Explanation:

Lactic acid is the common name for 2-hydroxypropanoic acid, an organic compound with ... Read More Details

9 Physical Chemistry MCQs

What is the easiest way to balance a chemical equation?

  • By using the atom’s atomic number
  • By using the atom’s atomic mass
  • First balance the metal, then the non-metal, then hydrogen, and finally oxygen
  • None of the above
0 Comments
Correct Answer: C. First balance the metal, then the non-metal, then hydrogen, and finally oxygen

Explanation:

Balancing chemical equations is an essential skill in chemistry. It ensures that the ... Read More Details

10 PERA MCQ's

The Punjab Enforcement and Regulatory Authority is established under which section of the Act?

  • Section 1
  • Section 2
  • Section 3
  • Section 4
0 Comments
Correct Answer: C. Section 3

Explanation:

Under Section 3 of the Punjab Enforcement and Regulation Act 2024, the Punjab Enforcement and ... Read More Details

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