1
MCQ (Single Correct Answer)

AIPMT 2005

Which one of the following pairs represents stereoisomerism?
A
Structural isomerism and gemetrical isomerism
B
Optical isomerism and geometrical isomerism
C
Chain isomerism and rotational isomerism
D
Linkage isomerism and geometrical isomerism.

Explanation

Pair of optical isomerism and geometrical isomerism are able to exhibit the phenomenon of stereoisomerism because both type of isomers differ only in their orientation in space.
2
MCQ (Single Correct Answer)

AIPMT 2005

The chirality of the compound
A
R
B
S
C
E
D
Z

Explanation

3
MCQ (Single Correct Answer)

AIPMT 2005

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

Explanation

4
MCQ (Single Correct Answer)

AIPMT 2004

The $$-$$ OH group of an alcohol or the $$-$$ COOH group of a carboxylic acid can be replaced by $$-$$ Cl using
A
phosphorus pentachloride
B
hypochlorous acid
C
chlorine
D
hydrochloric acid

Explanation

ROH + PCl5 $$ \to $$ RCl + POCl3 + HCl

RCOOH + PCl5 $$ \to $$ RCOCl + POCl3 + HCl

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