1
MCQ (Single Correct Answer)

AIPMT 2005

Products of the following reaction :
A
CH3COOH + CO2
B
CH3COOH + HOOC.CH2CH3
C
CH3CHO + CH3CH2CHO
D
CH3COOH + CH3COCH3

Explanation

2
MCQ (Single Correct Answer)

AIPMT 2005

Which one of the following alkenes will react faster with H2 under catalytic hydrogenation conditions ?
A
B
C
D

Explanation

Greater the number of alkyl groups(R) attached to the double bonded carbon atoms more stable is the alkene. Further the relative rates of hydrogenation decrease with increase of steric hindrance.
Thus, the stability of alkene will be


Hence alkene which will react faster with H2 is that which is most unstable.
3
MCQ (Single Correct Answer)

AIPMT 2004

Reaction of HBr with propene in the presence of peroxide gives
A
isopropyl bromide
B
3-bromopropane
C
allyl bromide
D
n-propyl bromide

Explanation

Reaction of HBr with propene in the presence of peroxide gives n-propyl bromide. This addition reaction is an example of anti-Markovnikov’s addition reaction.

4
MCQ (Single Correct Answer)

AIPMT 2004

Using anhydrous AlCl3 as catalyst, which one of the following reactions produces ethylbenzene (PhEt)?
A
H3C $$-$$ CH2OH + C6H6
B
CH3 $$-$$ CH $$=$$ CH2 + C6H6
C
H2C $$=$$ CH2 + C6H6
D
H3C $$-$$ CH3 + C6H6

Explanation

With ethene in presence of anhydrous AlCl3, benzene gives ethyl benzene (PhEt).

EXAM MAP

Joint Entrance Examination

JEE Advanced JEE Main

Medical

NEET

Graduate Aptitude Test in Engineering

GATE CE GATE ECE GATE ME GATE IN GATE EE GATE CSE GATE PI