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STATEMENT I: A catalyst can increase the rate constant to a large extent.
STATEMENT II: By using suitable catalyst, we can significantly increase yield.
(a)Statement I is true, Statement II is true; Statement II is the correct explanation for Statement I.
(b)Statement I is true, Statement II is true; Statement II is not the correct explanation for Statement I.
(c)Statement I is true; Statement II is false.
(d)Statement I is false; Statement II is true.

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Important Questions on Chemical Kinetics
HARD
For an elementary chemical reaction, , the expression for is:

MEDIUM
In the following reaction;
‘A’ and ‘B’ respectively can be:

MEDIUM

where,

and , are respectively, the rate constants for substitution and elimination, and , the correct option is ________

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Consider the following reactions
The order of the above reactions are respectively. The following graph is obtained when log[rate] vs.log[conc.] are plotted:
Among the following, the correct sequence for the order of the reactions is :

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If the concentration of is increased from , keeping the value of at , the rate constant will be:

HARD
The results given in the below table were obtained during kinetic studies of the following reaction:
Experiment | Initial rate/ | ||
I | |||
II | |||
III | |||
IV | X | ||
V | Y |
X and Y in the given table are respectively :

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Rate
If the concentration of A is kept the same but that of B is doubled what will happen to the rate itself?

HARD
...(i)
...(ii)
The closest rate constant for the overall reaction
is:

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Which of the following expression is correct for the rate of reaction given below ?

MEDIUM

MEDIUM

MEDIUM

MEDIUM

MEDIUM

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The initial concentration of is and it is after 30 minutes. The rate of formation of is:

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(i)
(ii)
(iii)
The overall order of the reaction will be

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