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1
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
For the non – stoichiometre reaction 2A + B $$\to$$ C + D, the following kinetic data were obtained in three separate experiments, all at 298 K.
Initial Concentration (A) Initial Concentration (B) Initial rate of formation of C (mol L-1 s-1)
0.1 M 0.1 M 1.2 x 10-3
0.1 M 0.2 M 1.2 x 10-3
0.2 M 0.1 M 2.4 x 10-3
The rate law for the formation of C is:
A
$${{dc} \over {dt}} = k[A]{[B]^2}$$
B
$${{dc} \over {dt}} = k[A]$$
C
$${{dc} \over {dt}} = k[A]{[B]}$$
D
$${{dc} \over {dt}} = k[A^2]{[B]}$$
2
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
The rate of a reaction doubles when its temperature changes from 300K to 310K. Activation energy of such a reaction will be:(R = 8.314 JK–1 mol–1 and log 2 = 0.301)
A
48.6 kJ mol–1
B
58.5 kJ mol–1
C
60.5 kJ mol–1
D
53.6 kJ mol–1
3
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
For a first order reaction, (A) $$\to$$ products, the concentration of A changes from 0.1 M to 0.025 M in 40 minutes. The rate of reaction when the concentration of A is 0.01 M is :
A
1.73 x 10–5 M/ min
B
3.47 x 10–4 M/min
C
3.47 x 10–5 M/min
D
1.73 x 10–4 M/min
4
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
The rate of a chemical reaction doubles for every 10oC rise of temperature. If the temperature is raised by 50oC , the rate of the reaction increases by about :
A
24 times
B
32 times
C
64 times
D
10 times
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