EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>NEET - 17th July 2022>Q 1

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The given graph is a representation of kinetics of a reaction.

The $y$ and $x$ axes for zero and first order reactions, respectively are

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Important Questions on Chemical Kinetics

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>NEET - 17th July 2022>Q 2

For a first order reaction

A \to

Products, initial concentration of

A

is

0.1 M

, which becomes

0.001 M

after

5

minutes. Rate constant for the reaction in

\min^{- 1}

is

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>NEET - 12 September 2021>Q 3

For a reaction

A \to B,

enthalpy of reaction is

- 4.2 kJ {mol}^{- 1}

and enthalpy of activation is

9.6 kJ {mol}^{- 1} .

The correct potential energy profile for the reaction is shown in the option.

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>NEET - 12 September 2021>Q 4

The slope of Arrhenius Plot $(lnk v/s \frac{1}{T})$ of first order reaction is $- 5 \times 10^{3} K .$ The value of $E_{a}$ of the reaction is. Choose the correct option for your answer.

[Given $R = 8.314 J K^{- 1} {mol}^{- 1}$ ]

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>NEET Phase 2 (14 October 2020)>Q 5

The half-life for a zero order reaction having

0.02 M

initial concentration of reactant is

100 s

. The rate constant (in

mol L^{- 1} s^{- 1}

) for the reaction is

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>NEET Phase 2 (14 October 2020)>Q 6

In collision theory of chemical reaction,

Z_{AB}

represents

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>NEET - 13th September 2020>Q 7

The rate constant for a first order reaction is

4.606 \times 10^{- 3} s^{- 1}

. The time required to reduce

2.0 g

of the reactant to

0.2 g

is :

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>NEET - 13th September 2020>Q 8

An increase in the concentration of the reactants of a reaction leads to change in

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>NEET - 5th May 2019>Q 9

If the rate constant for a first order reaction is

k

, the time

(t)

required for the completion of

99 %

of the reaction is given by