Chemical Kinetics
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Keep it short & simple. Type complete word. Avoid abusive language.
Match the statements given in Column I and Column II


Match the statements given in Column I and Column II


This is a Matching Type Question as classified in NCERT Exemplar
(i)- (c) ; (ii)- (a) ; (iii)- (d); (iv)- (f); (v)- (b); (vi)- (b)
A catalyst can influence the rate of a process by lowering the activation energy
When it comes to molecularity, there can't be a fraction or a zero.
The second half life of
Match the graph given in Column I with the order of reaction given in Column II. More than one item in Column I may link to the same item of Column II.

Match the graph given in Column I with the order of reaction given in Column II. More than one item in Column I may link to the same item of Column II.

This is a Matching Type Question as classified in NCERT Exemplar
(i)- (a) ; (ii)- (b) ; (iii)- (b); (iv)- (a)
A zero-order reaction is one in which the reactant concentrations do not change over time and the rate of concentration remains constant.
A first-order reaction is one in which the rate
Which of the following graphs is correct for a first order reaction?

Which of the following graphs is correct for a first order reaction?

This is a Multiple Choice Questions as classified in NCERT Exemplar
Correct options: A and D
The pace of a reaction that is directly proportional to the concentration of the reacting substance is known as a first order reaction.

Y=mn
k = log
t = log
x= a-
x=
t = log &nb
Which of the following graphs is correct for a zero-order reaction?


Which of the following graphs is correct for a zero-order reaction?


This is a Multiple Choice Questions as classified in NCERT Exemplar
Correct options: A and D
A Zero order reaction = [R] = ( - k)t + [R]0
y = (m × ) + c
x = t (time)
y = [R]concentration
Slope (m) = - k
Intercept (c) = [R]0
= - k
= -
Mark the incorrect statements.
A. Catalyst provides an alternative pathway to reaction mechanism.
B. Catalyst raises the activation energy.
C. Catalyst lowers the activation energy.
D. Catalyst alters enthalpy change of the reaction
Mark the incorrect statements.
A. Catalyst provides an alternative pathway to reaction mechanism.
B. Catalyst raises the activation energy.
C. Catalyst lowers the activation energy.
D. Catalyst alters enthalpy change of the reaction
This is a Multiple Choice Questions as classified in NCERT Exemplar
Correct options: B, C and D
Catalysts reduce the activation energy of a process and give an alternate path by reducing or raising the activation energy between reactants and products, altering the reaction's enthalpy change. As a resu
Which of the following statements are in accordance with the Arrhenius equation?
A. Rate of a reaction increases with increase in temperature.
B. Rate of a reaction increases with decrease in activation energy.
C. Rate constant decreases exponentially with increase in temperature.
D. Rate of reaction decreases with decrease in activation energy.
Which of the following statements are in accordance with the Arrhenius equation?
A. Rate of a reaction increases with increase in temperature.
B. Rate of a reaction increases with decrease in activation energy.
C. Rate constant decreases exponentially with increase in temperature.
D. Rate of reaction decreases with decrease in activation energy.
This is a Multiple Choice Questions as classified in NCERT Exemplar
Correct options: A and B
Arrhenius equation k = Ae –
When the temperature rises, value falls and –
As a result, e- increases, and it is certain that k and T increases as well. As a result, Option A is proven.
Cataly
In the graph showing Maxwell Boltzmann distribution of energy, ___________.
A. Area under the curve must not change with increase in temperature.
B. Area under the curve increases with increase in temperature.
C. Area under the curve decreases with increase in temperature.
D. With increase in temperature curve broadens and shifts to the right-hand side.

In the graph showing Maxwell Boltzmann distribution of energy, ___________.
A. Area under the curve must not change with increase in temperature.
B. Area under the curve increases with increase in temperature.
C. Area under the curve decreases with increase in temperature.
D. With increase in temperature curve broadens and shifts to the right-hand side.

This is a Multiple Choice Questions as classified in NCERT Exemplar
Correct options: A and D
According to the graph, the area under the cure must not vary as the temperature rises.T2 > T1
The energy level of T2 is higher than T1.
According to Maxwell Boltzmann distribution of energy, __________.
A. The fraction of molecules with most probable kinetic energy decreases at higher temperatures.
B. The fraction of molecules with most probable kinetic energy increases at higher temperatures.
C. Most probable kinetic energy increases at higher temperatures.
D. Most probable kinetic energy decreases at higher temperatures.
According to Maxwell Boltzmann distribution of energy, __________.
A. The fraction of molecules with most probable kinetic energy decreases at higher temperatures.
B. The fraction of molecules with most probable kinetic energy increases at higher temperatures.
C. Most probable kinetic energy increases at higher temperatures.
D. Most probable kinetic energy decreases at higher temperatures.
This is a Multiple Choice Questions as classified in NCERT Exemplar
Correct options: A and C

The Maxwell Boltzmann distribution, often known as the Gibbs distribution, is a measure that expresses the likelihood of a system being in each state as a function of the energy of that state.
Look at the graph
During decomposition of an activated complex
A. Energy is always released
B. Energy is always absorbed
C. Energy does not change
D. Reactants may be formed
During decomposition of an activated complex
A. Energy is always released
B. Energy is always absorbed
C. Energy does not change
D. Reactants may be formed
This is a Multiple Choice Questions as classified in NCERT Exemplar
Correct options: A and D
Activation Energy is the amount of energy released when reactant molecules collide and form an activated complex. When energy is released, the complex decomposes into a product.
At high pressure the following reaction is zero order
2NH3(g)
KN2(g) + 3H2(g)
Which of the following options are correct for this reaction?
A. Rate of reaction = Rate constant
B. Rate of the reaction depends on concentration of ammonia.
C. Rate of decomposition of ammonia will remain constant until ammonia disappears completely.
D. Further increase in pressure will change the rate of reaction.
At high pressure the following reaction is zero order
2NH3(g)
KN2(g) + 3H2(g)
Which of the following options are correct for this reaction?
A. Rate of reaction = Rate constant
B. Rate of the reaction depends on concentration of ammonia.
C. Rate of decomposition of ammonia will remain constant until ammonia disappears completely.
D. Further increase in pressure will change the rate of reaction.
This is a Multiple Choice Questions as classified in NCERT Exemplar
Correct options: A, C and D
The pressure in this reaction is extremely high, and it becomes independent of the ammonia concentration. The metal surface becomes saturated with gas molecules when the rate of reaction=Rate constant. The