EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>KCET (UG) 2018>Q 7

EASY

KCET (UG)

IMPORTANT

Earn 100

The value of rate constant of a pseudo-first-order reaction

50% studentsanswered this correctly

Important Questions on Chemical Kinetics

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KCET (UG)

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>KCET (UG) 2021>Q 8

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

MEDIUM

KCET (UG)

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>KCET (UG) 2021>Q 9

For a reaction

A + 2 B \to

Products, when concentration of

B

alone is increased, half life remains the same. If concentration of

A

alone is doubled, rate remains the same. The unit of rate constant for the reaction is

EASY

KCET (UG)

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>KCET (UG) 2020>Q 10

The rate constant of a reaction is given by

k = {PZe}^{- Ea / RT}

under standard notation In order to speed up the reaction, which of the following factors has to he decreased?

MEDIUM

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>KCET (UG) 2019>Q 11

Which is a wrong statement?

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>KCET (UG) 2018>Q 12

The temperature coefficient of a reaction is

2

. When the temperature is increased from

30 ° C

to

90 ° C

, the rate of reaction is increased by

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KCET (UG)

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 17 - Chemical Kinetics>KCET (UG) 2021>Q 13

Higher order

(> 3)

reactions are rare due to