Dependence of Rate on Concentration
CHXII04:CHEMICAL KINETICS

320124 For the reaction \(\mathrm{A}+\mathrm{B} \rightarrow\) products, it is observed that:
(A) On doubling the initial concentration of A only, the rate of reaction is also doubled
(B) On doubling the initial concentrations of both \(\mathrm{A}\) and \(\mathrm{B}\), there is a change by a factor of 8 in the rate of the reaction.
The rate law of this reaction is given by

1 \({\rm{rate = [A][B}}{{\rm{]}}^{\rm{2}}}\)
2 \({\rm{rate = k[A}}{{\rm{]}}^{\rm{2}}}{{\rm{[B]}}^{\rm{2}}}\)
3 \({\rm{rate = k}}\left[ {\rm{A}} \right]\left[ {\rm{B}} \right]\)
4 \({\rm{rate = k[A}}{{\rm{]}}^{\rm{2}}}{\rm{[B]}}\)
CHXII04:CHEMICAL KINETICS

320125 Assertion :
The order of a reaction can have fractional value.
Reason :
The order of a reaction cannot be written from balanced equation of a 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 Both Assertion and Reason are incorrect.
CHXII04:CHEMICAL KINETICS

320126 Assertion :
The order of a reaction may be negative.
Reason :
In some cases, the rate of reaction decreases as the concentration of the reactant increases.

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

320127 For the reaction
\({\text{B + 2D}} \to {\text{3T, - }}\frac{{{\text{d}}{{\text{C}}_{\text{B}}}}}{{{\text{dt}}}}{\text{ = k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
The expression for, \(\dfrac{d C_{D}}{d t}\) will be:

1 \({\text{2k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
2 \(\frac{{\text{1}}}{{\text{2}}}{\text{k}}{{\text{C}}_{\text{B}}}{{\text{C}}_{\text{D}}}^{\text{2}}\)
3 \({\text{4k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
4 \(\dfrac{1}{4} k C_{B} C_{D}^{2}\)
CHXII04:CHEMICAL KINETICS

320128 The rate constant of a reaction is \({\text{175}}\,\,{\text{li}}{{\text{t}}^{\text{2}}}{\text{ mo}}{{\text{l}}^{{\text{ - 2}}}}{\text{ se}}{{\text{c}}^{{\text{ - 1}}}}\). What is the order of reaction?

1 First
2 Second
3 Third
4 Zero
CHXII04:CHEMICAL KINETICS

320124 For the reaction \(\mathrm{A}+\mathrm{B} \rightarrow\) products, it is observed that:
(A) On doubling the initial concentration of A only, the rate of reaction is also doubled
(B) On doubling the initial concentrations of both \(\mathrm{A}\) and \(\mathrm{B}\), there is a change by a factor of 8 in the rate of the reaction.
The rate law of this reaction is given by

1 \({\rm{rate = [A][B}}{{\rm{]}}^{\rm{2}}}\)
2 \({\rm{rate = k[A}}{{\rm{]}}^{\rm{2}}}{{\rm{[B]}}^{\rm{2}}}\)
3 \({\rm{rate = k}}\left[ {\rm{A}} \right]\left[ {\rm{B}} \right]\)
4 \({\rm{rate = k[A}}{{\rm{]}}^{\rm{2}}}{\rm{[B]}}\)
CHXII04:CHEMICAL KINETICS

320125 Assertion :
The order of a reaction can have fractional value.
Reason :
The order of a reaction cannot be written from balanced equation of a 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 Both Assertion and Reason are incorrect.
CHXII04:CHEMICAL KINETICS

320126 Assertion :
The order of a reaction may be negative.
Reason :
In some cases, the rate of reaction decreases as the concentration of the reactant increases.

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

320127 For the reaction
\({\text{B + 2D}} \to {\text{3T, - }}\frac{{{\text{d}}{{\text{C}}_{\text{B}}}}}{{{\text{dt}}}}{\text{ = k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
The expression for, \(\dfrac{d C_{D}}{d t}\) will be:

1 \({\text{2k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
2 \(\frac{{\text{1}}}{{\text{2}}}{\text{k}}{{\text{C}}_{\text{B}}}{{\text{C}}_{\text{D}}}^{\text{2}}\)
3 \({\text{4k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
4 \(\dfrac{1}{4} k C_{B} C_{D}^{2}\)
CHXII04:CHEMICAL KINETICS

320128 The rate constant of a reaction is \({\text{175}}\,\,{\text{li}}{{\text{t}}^{\text{2}}}{\text{ mo}}{{\text{l}}^{{\text{ - 2}}}}{\text{ se}}{{\text{c}}^{{\text{ - 1}}}}\). What is the order of reaction?

1 First
2 Second
3 Third
4 Zero
CHXII04:CHEMICAL KINETICS

320124 For the reaction \(\mathrm{A}+\mathrm{B} \rightarrow\) products, it is observed that:
(A) On doubling the initial concentration of A only, the rate of reaction is also doubled
(B) On doubling the initial concentrations of both \(\mathrm{A}\) and \(\mathrm{B}\), there is a change by a factor of 8 in the rate of the reaction.
The rate law of this reaction is given by

1 \({\rm{rate = [A][B}}{{\rm{]}}^{\rm{2}}}\)
2 \({\rm{rate = k[A}}{{\rm{]}}^{\rm{2}}}{{\rm{[B]}}^{\rm{2}}}\)
3 \({\rm{rate = k}}\left[ {\rm{A}} \right]\left[ {\rm{B}} \right]\)
4 \({\rm{rate = k[A}}{{\rm{]}}^{\rm{2}}}{\rm{[B]}}\)
CHXII04:CHEMICAL KINETICS

320125 Assertion :
The order of a reaction can have fractional value.
Reason :
The order of a reaction cannot be written from balanced equation of a 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 Both Assertion and Reason are incorrect.
CHXII04:CHEMICAL KINETICS

320126 Assertion :
The order of a reaction may be negative.
Reason :
In some cases, the rate of reaction decreases as the concentration of the reactant increases.

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

320127 For the reaction
\({\text{B + 2D}} \to {\text{3T, - }}\frac{{{\text{d}}{{\text{C}}_{\text{B}}}}}{{{\text{dt}}}}{\text{ = k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
The expression for, \(\dfrac{d C_{D}}{d t}\) will be:

1 \({\text{2k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
2 \(\frac{{\text{1}}}{{\text{2}}}{\text{k}}{{\text{C}}_{\text{B}}}{{\text{C}}_{\text{D}}}^{\text{2}}\)
3 \({\text{4k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
4 \(\dfrac{1}{4} k C_{B} C_{D}^{2}\)
CHXII04:CHEMICAL KINETICS

320128 The rate constant of a reaction is \({\text{175}}\,\,{\text{li}}{{\text{t}}^{\text{2}}}{\text{ mo}}{{\text{l}}^{{\text{ - 2}}}}{\text{ se}}{{\text{c}}^{{\text{ - 1}}}}\). What is the order of reaction?

1 First
2 Second
3 Third
4 Zero
CHXII04:CHEMICAL KINETICS

320124 For the reaction \(\mathrm{A}+\mathrm{B} \rightarrow\) products, it is observed that:
(A) On doubling the initial concentration of A only, the rate of reaction is also doubled
(B) On doubling the initial concentrations of both \(\mathrm{A}\) and \(\mathrm{B}\), there is a change by a factor of 8 in the rate of the reaction.
The rate law of this reaction is given by

1 \({\rm{rate = [A][B}}{{\rm{]}}^{\rm{2}}}\)
2 \({\rm{rate = k[A}}{{\rm{]}}^{\rm{2}}}{{\rm{[B]}}^{\rm{2}}}\)
3 \({\rm{rate = k}}\left[ {\rm{A}} \right]\left[ {\rm{B}} \right]\)
4 \({\rm{rate = k[A}}{{\rm{]}}^{\rm{2}}}{\rm{[B]}}\)
CHXII04:CHEMICAL KINETICS

320125 Assertion :
The order of a reaction can have fractional value.
Reason :
The order of a reaction cannot be written from balanced equation of a 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 Both Assertion and Reason are incorrect.
CHXII04:CHEMICAL KINETICS

320126 Assertion :
The order of a reaction may be negative.
Reason :
In some cases, the rate of reaction decreases as the concentration of the reactant increases.

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

320127 For the reaction
\({\text{B + 2D}} \to {\text{3T, - }}\frac{{{\text{d}}{{\text{C}}_{\text{B}}}}}{{{\text{dt}}}}{\text{ = k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
The expression for, \(\dfrac{d C_{D}}{d t}\) will be:

1 \({\text{2k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
2 \(\frac{{\text{1}}}{{\text{2}}}{\text{k}}{{\text{C}}_{\text{B}}}{{\text{C}}_{\text{D}}}^{\text{2}}\)
3 \({\text{4k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
4 \(\dfrac{1}{4} k C_{B} C_{D}^{2}\)
CHXII04:CHEMICAL KINETICS

320128 The rate constant of a reaction is \({\text{175}}\,\,{\text{li}}{{\text{t}}^{\text{2}}}{\text{ mo}}{{\text{l}}^{{\text{ - 2}}}}{\text{ se}}{{\text{c}}^{{\text{ - 1}}}}\). What is the order of reaction?

1 First
2 Second
3 Third
4 Zero
CHXII04:CHEMICAL KINETICS

320124 For the reaction \(\mathrm{A}+\mathrm{B} \rightarrow\) products, it is observed that:
(A) On doubling the initial concentration of A only, the rate of reaction is also doubled
(B) On doubling the initial concentrations of both \(\mathrm{A}\) and \(\mathrm{B}\), there is a change by a factor of 8 in the rate of the reaction.
The rate law of this reaction is given by

1 \({\rm{rate = [A][B}}{{\rm{]}}^{\rm{2}}}\)
2 \({\rm{rate = k[A}}{{\rm{]}}^{\rm{2}}}{{\rm{[B]}}^{\rm{2}}}\)
3 \({\rm{rate = k}}\left[ {\rm{A}} \right]\left[ {\rm{B}} \right]\)
4 \({\rm{rate = k[A}}{{\rm{]}}^{\rm{2}}}{\rm{[B]}}\)
CHXII04:CHEMICAL KINETICS

320125 Assertion :
The order of a reaction can have fractional value.
Reason :
The order of a reaction cannot be written from balanced equation of a 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 Both Assertion and Reason are incorrect.
CHXII04:CHEMICAL KINETICS

320126 Assertion :
The order of a reaction may be negative.
Reason :
In some cases, the rate of reaction decreases as the concentration of the reactant increases.

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

320127 For the reaction
\({\text{B + 2D}} \to {\text{3T, - }}\frac{{{\text{d}}{{\text{C}}_{\text{B}}}}}{{{\text{dt}}}}{\text{ = k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
The expression for, \(\dfrac{d C_{D}}{d t}\) will be:

1 \({\text{2k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
2 \(\frac{{\text{1}}}{{\text{2}}}{\text{k}}{{\text{C}}_{\text{B}}}{{\text{C}}_{\text{D}}}^{\text{2}}\)
3 \({\text{4k}}{{\text{C}}_{\text{B}}}{\text{C}}_{\text{D}}^{\text{2}}\)
4 \(\dfrac{1}{4} k C_{B} C_{D}^{2}\)
CHXII04:CHEMICAL KINETICS

320128 The rate constant of a reaction is \({\text{175}}\,\,{\text{li}}{{\text{t}}^{\text{2}}}{\text{ mo}}{{\text{l}}^{{\text{ - 2}}}}{\text{ se}}{{\text{c}}^{{\text{ - 1}}}}\). What is the order of reaction?

1 First
2 Second
3 Third
4 Zero