1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
If the rate of the reaction is equal to the rate constant, the order of the reaction is
A
0
B
1
C
2
D
3
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
The reaction A $$ \to $$ B follows first order kinetics. The time taken for 0.8 mole of A to produce 0.6 mole of B is 1 hour. What is the time taken for conversion of 0.9 mole of A to produce 0.675 mole of B?
A
1 hour
B
0.5 hour
C
0.25 hour
D
2 hours
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
The activation energy for a simple chemical reaction A $$\rightleftharpoons$$ B is E$$a$$ in forward direction.
The activation energy for reverse reaction
A
is negative of E$$a$$
B
is always less than E$$a$$
C
can be less than or more than E$$a$$
D
is always double of E$$a$$
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
According to the adsorption theory of catalysis, the speed of the reaction increases because
A
the concentration of reactant molecules at the active centres of the catalyst becomes high due to adsorption
B
in the process of adsorption , the activation energy of the molecules becomes large
C
adsorption produces heat which increases the speed of the reaction
D
adsorption lowers the activation energy of the reaction.
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