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
For the reaction H+ + BrO$$_3^ - $$ + 3Br$$-$$ $$ \to $$ 5Br2 + H2O
which of the following relation correctly represents the consumption and formation of products.
A
$${{d\left[ {B{r^ - }} \right]} \over {dt}} = - {3 \over 5}{{d\left[ {B{r_2}} \right]} \over {dt}}$$
B
$${{d\left[ {B{r^ - }} \right]} \over {dt}} = {3 \over 5}{{d\left[ {B{r_2}} \right]} \over {dt}}$$
C
$${{d\left[ {B{r^ - }} \right]} \over {dt}} = - {5 \over 3}{{d\left[ {B{r_2}} \right]} \over {dt}}$$
D
$${{d\left[ {B{r^ - }} \right]} \over {dt}} = {5 \over 3}{{d\left[ {B{r_2}} \right]} \over {dt}}$$
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 compound has planar structure?
A
XeF4
B
XeOF2
C
XeO2F2
D
XeO4
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