1
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
In SN2 reactions, the correct order of reactivity for the following compounds:
CH3Cl, CH3CH 2Cl, (CH3)2CHCl and (CH3)3CCl is:
A
CH3CH2Cl > CH3Cl > (CH3)2CHCl > (CH3)3CCl
B
(CH3)2CHCl > CH3CH2Cl > CH3Cl > (CH3)3CCl
C
CH3Cl > (CH3)2CHCl > CH3CH2Cl > (CH3)3CCl
D
CH3Cl > CH3CH2Cl > (CH3)2CHCl > (CH3)3CCl
2
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
Considering the basic strength of amines in aqueous solution, which one has the smallest pKb value?
A
(CH3)3N
B
C6H5NH2
C
(CH3)2NH
D
CH3NH2
3
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
The major organic compound formed by the reaction of 1, 1, 1– trichloroethane with silver powder is:
A
2- Butyne
B
2- Butene
C
Acetylene
D
Ethene
4
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
Which one of the following bases is not present in DNA?
A
Cytosine
B
Thymine
C
Quinoline
D
Adenine

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