1
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Which of the following is not chiral?
A
2-Hydroxypropanoic acid
B
2-Butanol
C
2,3-Dibromopentane
D
3-Bromopentane
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Which of the following undergoes nucleophilic substitution exclusively by SN1 mechanism?
A
Ethyl chloride
B
Isopropyl chloride
C
Chlorobenzene
D
Benzyl chloride
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Which of the following is least reactive in a nucleophilic sibstitution reaction?
A
(CH3)3C $$-$$ Cl
B
CH2$$=$$CHCl
C
CH3CH2Cl
D
CH2$$=$$CHCH2Cl
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Reactivity order of halides for dehydrologenation is
A
$$R - F > R - Cl > R - Br > R - {\rm I}$$
B
$$R - {\rm I} > R - Br > R - Cl > R - F$$
C
$$R - {\rm I} > R - Cl > R - Br > R - F$$
D
$$R - F > R - {\rm I} > R - Br > R - Cl$$
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