1
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
More number of oxidation states are exhibited by the actinoids than by the lanthanoids. The main reason for this is
A
more active nature of the actinoids
B
more energy difference between 5f and 6d orbitals than that between 4f and 5d orbitals
C
lesser energy difference between 5f and 6d orbitals than that between 4f and 5d orbitals
D
greater metallic character of the lanthanoids than that of the corresponding actinoids.
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
EoFe2+/Fe = $$-$$ 0.441 V and EoFe3+/Fe2+ = 0.771 V, the standard EMF of the reaction Fe + 2Fe3+ $$ \to $$ 3Fe2+ will be
A
0.111 V
B
0.330 V
C
1.653 V
D
1.212 V
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Self condensation of two moles of ethyl acetate in presence of sodium ethoxide yields
A
ethyl propionate
B
ethyl butyrate
C
acetoacetic ester
D
methyl acetoacetate
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
The human body does not produce
A
enzymes
B
DNA
C
vitamins
D
hormones