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1 Organic Chemistry MCQs

The oxidation of isopropyl alcohol will yield _____________?

  • Propane
  • Propanol
  • Propanone
  • Propanoic acid
0 Comments
Correct Answer: C. Propanone

Explanation:

Isopropyl alcohol is the common name for 2-propanol (CH₃–CHOH–CH₃), a secondary alcohol. The ... Read More Details

2 Organic Chemistry MCQs

The distinction test for primary, secondary, and tertiary alcohols requires them to react with _____________?

  • Conc. HCl and anhydrous SOCl₂
  • Conc. HCl and anhydrous CaCl₂
  • Conc. HCl and anhydrous PCl₂
  • Conc. HCl and anhydrous ZnCl₂
0 Comments
Correct Answer: D. Conc. HCl and anhydrous ZnCl₂

Explanation:

To distinguish between primary, secondary, and tertiary alcohols, chemists use a method known ... Read More Details

3 Organic Chemistry MCQs

The given dissociation constant (Ka) value 1.3×10⁻¹⁰ is of ?

  • Alcohol
  • Acetic acid
  • Water
  • Phenol
0 Comments
Correct Answer: D. Phenol

Explanation:

The dissociation constant (Ka) is an important measure of the strength of an ... Read More Details

4 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

5 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

6 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

7 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

8 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

9 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

10 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

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