1
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
2
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
3
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
4
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
The equation which is balanced and represents the correct product(s) is :
A
[Mg (H2O)6 ]2+ + (EDTA)4- $$\buildrel {excess\,NaOH} \over \longrightarrow $$ [Mg (EDTA) ]2+ + 6H2O
B
CuSO4 + KCN $$\to$$ K2 [Cu (CN)4] + K2SO4
C
Li2O + 2KCl $$\to$$ 2LiCl + K2O
D
[CoCl(NH3)5]+ + 5H+ $$\to$$ Co2+ + $$5NH_4^+$$ + Cl-

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