For the reaction 2 A + 3 B + 3 2 C → 3 P , which statement is correct?

dn A dt = 2 3 dn B dt = 4 3 dn C dt

d n A d t = 3 2 d n B d t = 3 4 d n C d t

dn A dt = 2 3 dn B dt = 3 4 dn C dt

A zero order reaction is a multi-step reaction

A second order reaction is always a multistep reaction

A first order reaction is always a single step reaction

A zero order reaction is a single step reaction

EASY

JEE Main

IMPORTANT

Earn 100

Higher order (>3) reactions are rare due to:

60% studentsanswered this correctly

Important Questions on Chemical Kinetics

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 4 September 2020 Shift 2>Q 32

The number of molecules with energy greater than the threshold energy for a reaction increases five fold by a rise of temperature from

27^{o} C

42^{o} C

. Its energy of activation in

J / mol

is _________ (Take

\ln 5 = 1.6094; R = 8.314 J {mol}^{- 1}

)

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 4 September 2020 Shift 1>Q 33

75 %

of a first order reaction was completed in

90

minutes,

60 %

of the same reaction would be completed in approximately (in minutes) _____
(Take:

\log 2 = 0.30; \log 2.5 = 0.40

)

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 3rd April 2016>Q 34

Decomposition of

H_{2} O_{2}

follows a first order reaction. In fifty minutes the concentration of

H_{2} O_{2}

decreases from

0.5

0.125 M

in one such decomposition. When the concentration of

H_{2} O_{2}

reaches

0.05 M

, the rate of formation of

O_{2}

will be:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 31 August 2021 Shift 2>Q 35

For the reaction

A \to B,

the rate constant

k

(in

s^{- 1}

) is given by

\log_{10} k = 20.35 - \frac{(2.47 \times 10^{3})}{T}

The energy of activation in

kJ {mol}^{- 1}

is ________ . (Nearest integer)
[Given :

R = 8.314 J K^{- 1} {mol}^{- 1}

]

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 31 August 2021 Shift 1>Q 36

According to the following figure, the magnitude of the enthalpy change of the reaction

A + B \to M + N

kJ {mol}^{- 1}

is equal to __________ . (Integer answer)
Question Image

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 31 August 2021 Shift 1>Q 37

For a first order reaction, the ratio of the time for

75 %

completion of a reaction to the time for

50 %

completion is ___________ . (Integer answer)

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 3 September 2020 Shift 2>Q 38

For the reaction

2 A + 3 B + \frac{3}{2} C \to 3 P

, which statement is correct?

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 3 September 2020 Shift 1>Q 39

It is true that:

Higher order (>3) reactions are rare due to:

Important Questions on Chemical Kinetics

Learn and Prepare for any exam you want !