1
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
2
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-
3
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
On heating an aliphatic primary amine with chloroform and ethanolic potassium hydroxide, the organic compound formed is:
A
an alkyl cyanide
B
an alkyl isocyanide
C
an alkanol
D
an alkanediol
4
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
The octahedral complex of a metal ion M3+ with four monodentate ligands L1, L2, L3 and L4 absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is :
A
L3 < L2 < L4 < L1
B
L1 < L2 < L4 < L3
C
L4 < L3 < L2 < L1
D
L1 < L3 < L2 < L4

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