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1

AIPMT 2012 Mains

MCQ (Single Correct Answer)
Which of the following compounds can be used as antifreeze in automobile radiators?
A
Methyl alcohol
B
Glycol
C
Nitrophenol
D
Ethyl alcohol

Explanation

Glycol is used as an antifreeze in automobiles.
2

AIPMT 2011 Prelims

MCQ (Single Correct Answer)
In the following reactions,


the major products (A) and (C) are respectively
A
B
C
D

Explanation


3

AIPMT 2010 Prelims

MCQ (Single Correct Answer)
Which of the following compounds has the most acidic nature?
A
B
C
D

Explanation

Phenol is most acidic among the given options. In phenol, the electron withdrawing phenyl ring polarises the O-H bond thereby facilitating the release of H+.

In option (A) the -I effect of phenyl ring is diminished by -CH2 group.

Moreover, the phenolate ion is stabilised by resonance.
4

AIPMT 2010 Mains

MCQ (Single Correct Answer)
Match the compounds given in List I with their characteristic reactions given in List II. Select the correct option.

List I
(Compounds)
List II
(Reactions)
A. CH3(CH2)3NH2 (i) Alkaline hydrolysis
B. CH3C$$ \equiv $$CH (ii) With KOH (alcohol)
and CHCl3 produces
bad smell
C. CH3CH2COOCH3 (iii) Gives white ppt.
with ammoniacal
AgNO3
D. CH3CH(OH)CH3 (iv) With Lucas reagent
cloudiness appears
after 5 minutes
A
A-(ii),  B-(i),  C-(iv),  D-(iii)
B
A-(iii),  B-(ii),  C-(i),  D-(iv)
C
A-(ii),  B-(iii),  C-(i),  D-(iv)
D
A-(iv),  B-(ii),  C-(iii),  D-(i)

Explanation

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