1
MCQ (Single Correct Answer)

AIPMT 2006

The IUPAC name of



is
A
1-chloro-1-oxo-2, 3-dimethylpentane
B
2-ethyl-3-methylbutanoyl chloride
C
2, 3-dimethylpentanoyl chloride
D
3, 4-dimethylpentanoyl chloride.

Explanation

2
MCQ (Single Correct Answer)

AIPMT 2006

The general molecular formula, which represents the homologous series of alkanols is
A
CnH2nO
B
CnH2nO2
C
CnH2n + 2O
D
CnH2n + 1O

Explanation

All alcohols follow the general formula as CnH2n+2O.
3
MCQ (Single Correct Answer)

AIPMT 2005

The best method for the separation of naphthalene and benzoic acid from their mixture is
A
distillation
B
sublimation
C
chromatography
D
crystallisation.

Explanation

Sublimation would be the best method because it is applicable for those organic compounds which pass directly from solid to vapour state on heating and vice versa on cooling. In these compounds naphthalene is volatile and benzoic acid is nonvolatile due to the formation of dimer via intermolecular hydrogen bonding.
4
MCQ (Single Correct Answer)

AIPMT 2005

Names of some compounds are given. Which one is not in IUPAC system?
A
B
C
D

Explanation

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