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.
3
MCQ (Single Correct Answer)
AIPMT 2004
The molecular formula of diphenyl methane,
How many structural isomers are possible when one of the hydrogen is replaced by a chlorine atom ?
A
6
B
4
C
8
D
7
Explanation
Only four structural isomers are possible
for diphenyl methane.
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
Questions Asked from Some Basic Concepts of Organic Chemistry
On those following papers in MCQ (Single Correct Answer) Number in Brackets after Paper Name Indicates No of Questions
