1
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Mg is present in
A
chlorophyll
B
haemoglobin
C
vitamin-D
D
vitamin-B
2
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Which is maximum stable?
A
1-Butene
B
cis-2-Butene
C
trans-2-Butene
D
All have same stability.
3
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
How enzymes increases the rate of reactions
A
by lowering activation energy
B
by increaing activation energy
C
by changing equilibrium constant
D
by forming enzyme substrate complex.
4
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
For the disproportionation of copper
2Cu+  $$ \to $$ Cu2+ + Cu, Eo is
(Given Eo for Cu2+/Cu is 0.34 V and
Eo for Cu2+/Cu+ is 0.15 V.)
A
0.49 V
B
$$-$$ 0.19 V
C
0.38 V
D
$$-$$0.38 V