Collision Theory of Chemical Reaction
CHXII04:CHEMICAL KINETICS

320080 Assertion :
According to steady state hypothesis, in a multistep reaction, the change in concentration with time for reactive intermediates is zero.
Reason :
The intermediates are so reactive that after a brief initial period their concentrations rise from zero to a small value and remains constant for most of the duration of the reaction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII04:CHEMICAL KINETICS

320081 When we increase temperature, the rate of reaction increases because of

1 more number of collisions
2 decrease in mean free path
3 more number of energetic collisions
4 less number of energetic collisions
CHXII04:CHEMICAL KINETICS

320082 Which of the following statements is correct?

1 An activated complex is formed before a reaction
2 An activation complex is formed after a reaction
3 An activated complex has longer life
4 An activated complex has infinite life
CHXII04:CHEMICAL KINETICS

320083 The energy of activation is

1 the energy associated with the activated complex
2 threshold energy + average energy of reactants
3 threshold energy - average energy of reactants
4 energy of products - energy of reactants
CHXII04:CHEMICAL KINETICS

320084 The excess energy which a molecule must possess to become active is known as

1 kinetic energy
2 threshold energy
3 potential energy
4 activation energy.
CHXII04:CHEMICAL KINETICS

320080 Assertion :
According to steady state hypothesis, in a multistep reaction, the change in concentration with time for reactive intermediates is zero.
Reason :
The intermediates are so reactive that after a brief initial period their concentrations rise from zero to a small value and remains constant for most of the duration of the reaction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII04:CHEMICAL KINETICS

320081 When we increase temperature, the rate of reaction increases because of

1 more number of collisions
2 decrease in mean free path
3 more number of energetic collisions
4 less number of energetic collisions
CHXII04:CHEMICAL KINETICS

320082 Which of the following statements is correct?

1 An activated complex is formed before a reaction
2 An activation complex is formed after a reaction
3 An activated complex has longer life
4 An activated complex has infinite life
CHXII04:CHEMICAL KINETICS

320083 The energy of activation is

1 the energy associated with the activated complex
2 threshold energy + average energy of reactants
3 threshold energy - average energy of reactants
4 energy of products - energy of reactants
CHXII04:CHEMICAL KINETICS

320084 The excess energy which a molecule must possess to become active is known as

1 kinetic energy
2 threshold energy
3 potential energy
4 activation energy.
CHXII04:CHEMICAL KINETICS

320080 Assertion :
According to steady state hypothesis, in a multistep reaction, the change in concentration with time for reactive intermediates is zero.
Reason :
The intermediates are so reactive that after a brief initial period their concentrations rise from zero to a small value and remains constant for most of the duration of the reaction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII04:CHEMICAL KINETICS

320081 When we increase temperature, the rate of reaction increases because of

1 more number of collisions
2 decrease in mean free path
3 more number of energetic collisions
4 less number of energetic collisions
CHXII04:CHEMICAL KINETICS

320082 Which of the following statements is correct?

1 An activated complex is formed before a reaction
2 An activation complex is formed after a reaction
3 An activated complex has longer life
4 An activated complex has infinite life
CHXII04:CHEMICAL KINETICS

320083 The energy of activation is

1 the energy associated with the activated complex
2 threshold energy + average energy of reactants
3 threshold energy - average energy of reactants
4 energy of products - energy of reactants
CHXII04:CHEMICAL KINETICS

320084 The excess energy which a molecule must possess to become active is known as

1 kinetic energy
2 threshold energy
3 potential energy
4 activation energy.
CHXII04:CHEMICAL KINETICS

320080 Assertion :
According to steady state hypothesis, in a multistep reaction, the change in concentration with time for reactive intermediates is zero.
Reason :
The intermediates are so reactive that after a brief initial period their concentrations rise from zero to a small value and remains constant for most of the duration of the reaction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII04:CHEMICAL KINETICS

320081 When we increase temperature, the rate of reaction increases because of

1 more number of collisions
2 decrease in mean free path
3 more number of energetic collisions
4 less number of energetic collisions
CHXII04:CHEMICAL KINETICS

320082 Which of the following statements is correct?

1 An activated complex is formed before a reaction
2 An activation complex is formed after a reaction
3 An activated complex has longer life
4 An activated complex has infinite life
CHXII04:CHEMICAL KINETICS

320083 The energy of activation is

1 the energy associated with the activated complex
2 threshold energy + average energy of reactants
3 threshold energy - average energy of reactants
4 energy of products - energy of reactants
CHXII04:CHEMICAL KINETICS

320084 The excess energy which a molecule must possess to become active is known as

1 kinetic energy
2 threshold energy
3 potential energy
4 activation energy.
CHXII04:CHEMICAL KINETICS

320080 Assertion :
According to steady state hypothesis, in a multistep reaction, the change in concentration with time for reactive intermediates is zero.
Reason :
The intermediates are so reactive that after a brief initial period their concentrations rise from zero to a small value and remains constant for most of the duration of the reaction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII04:CHEMICAL KINETICS

320081 When we increase temperature, the rate of reaction increases because of

1 more number of collisions
2 decrease in mean free path
3 more number of energetic collisions
4 less number of energetic collisions
CHXII04:CHEMICAL KINETICS

320082 Which of the following statements is correct?

1 An activated complex is formed before a reaction
2 An activation complex is formed after a reaction
3 An activated complex has longer life
4 An activated complex has infinite life
CHXII04:CHEMICAL KINETICS

320083 The energy of activation is

1 the energy associated with the activated complex
2 threshold energy + average energy of reactants
3 threshold energy - average energy of reactants
4 energy of products - energy of reactants
CHXII04:CHEMICAL KINETICS

320084 The excess energy which a molecule must possess to become active is known as

1 kinetic energy
2 threshold energy
3 potential energy
4 activation energy.