WB JEE 2024 | Chemical Kinetics Question 1 | Chemistry

WB JEE 2024

MCQ (Single Correct Answer)

-0.25

For a first order reaction with rate constant $$\mathrm{k}$$, the slope of the plot of $$\log$$ (reactant concentration) against time is

k/2.303

$$-$$k/2.303

$$-$$k

WB JEE 2023

MCQ (Single Correct Answer)

-0.25

Which of the following would give a linear plot?

(k is the rate constant of an elementary reaction and T is temp. in absolute scale)

k vs T

k vs 1/T

ln k vs T

ln k vs 1/T

WB JEE 2023

MCQ (Single Correct Answer)

-0.25

For the reaction A + B $$\to$$ C, we have the following data:

Initial concentration of A (in molarity)	Initial concentration of B (in molarity)	Rate (initial) (Relevant unit)
1	10	100
1	1	1
10	1	10

The order of the reaction with respect to A and B are

Not possible to tell with the given data.

First order with respect to both A and B.

First order with respect to A and second order with respect to B.

Second order with respect to A and first order with respect to B.

WB JEE 2021

MCQ (Single Correct Answer)

-0.25

The equilibrium constant for the reaction

N₂(g) + O₂(g) $$\rightleftharpoons$$ 2NO(g) is 4 $$\times$$ 10^$$-$$4 at 2000 K. In presence of a catalyst the equilibrium is attained 10 times faster. Therefore, the equilibrium constant, in presence of the catalyst at 2000 K is

4 $$\times$$ 10^$$-$$4

4 $$\times$$ 10^$$-$$3

4 $$\times$$ 10^$$-$$5

2.5 $$\times$$ 10^$$-$$4

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