EASY
12th Odisha Board
IMPORTANT
Earn 100

Radioactive decay is a first order rate process. Two-third of a radioactive isotope disintegrates in 30 minutes. What is the rate constant of the disintegration ?

Important Questions on Chemical Kinetics

EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 4 - Chemical Kinetics>QUESTIONS>Q 5
The rate constant of a first order reaction is, k=7.39×10-5 sec-1. Find the half-life of the reaction.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 4 - Chemical Kinetics>QUESTIONS>Q 6
What is the difference between order and molecularity of a reaction ?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 4 - Chemical Kinetics>QUESTIONS>Q 7
Derive the half-life period from the 1st order rate equation.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 4 - Chemical Kinetics>QUESTIONS>Q 8
Distinguish between order and molecularity of a reaction.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 4 - Chemical Kinetics>QUESTIONS>Q 9
What is zero order reaction? Give one example.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 4 - Chemical Kinetics>QUESTIONS>Q 10
Name any two factors which influence the rate of a reaction.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 4 - Chemical Kinetics>QUESTIONS>Q 11
Half-life period of a substance is 20 days. After 30 days what percentage of the substance will be left.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 4 - Chemical Kinetics>QUESTIONS>Q 12
Calculate the rate constant of a reaction ( 1st order) which is 90% complete in 10 minutes.