1
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.
2
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Which compound has planar structure?
A
XeF4
B
XeOF2
C
XeO2F2
D
XeO4
3
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Which compound is electron deficient?
A
BeCl2
B
BCl3
C
CCl4
D
PCl5
4
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Which of the following shows maximum number of oxidation states?
A
Cr
B
Fe
C
Mn
D
V