Rate of the Reaction
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CHXII04:CHEMICAL KINETICS

320581 Consider a general chemical change \({\rm{2\;A + 3\;B}} \to \) Products. The rate of consumption of \({\rm{A}}{\mkern 1mu} {\mkern 1mu} {\rm{is}}\,\,{{\rm{r}}_{\rm{1}}}\) and that of consumption of \({\rm{B}}\,\,{\rm{is}}\,\,{{\rm{r}}_{\rm{2}}}\). The rate \({{\rm{r}}_{\rm{1}}}\,\,{\rm{and}}\,\,{{\rm{r}}_{\rm{2}}}\) are related as

1 \({\rm{3}}{{\rm{r}}_{\rm{1}}}{\rm{ = 2}}{{\rm{r}}_{\rm{2}}}\)
2 \({\rm{2}}{{\rm{r}}_{\rm{1}}}{\rm{ = 3}}{{\rm{r}}_{\rm{2}}}\)
3 \({{\rm{r}}_{\rm{1}}}{\rm{ = }}{{\rm{r}}_{\rm{2}}}\)
4 \({\rm{r}}_{\rm{1}}^{\rm{2}}{\rm{ = 2r}}_{\rm{2}}^{\rm{2}}\)
CHXII04:CHEMICAL KINETICS

320582 For the reaction, \(4 \mathrm{~A}+\mathrm{B} \rightarrow 2 \mathrm{C}+2 \mathrm{D}\) which of the following statements is not correct?

1 Rate of disappearance of B is 1/4th of rate of disappearance of \(\mathrm{A}\).
2 Rate of formation of \(\mathrm{C}\) is \(1 / 2\) of rate of consumption of A.
3 Rate of appearance of \(\mathrm{D}\) is \(1 / 2\) of rate of disappearance of \(\mathrm{B}\).
4 Rate of formation of \(\mathrm{C}\) and \(\mathrm{D}\) are equal.
CHXII04:CHEMICAL KINETICS

320583 Statement A :
It is not always convenient to determine the instantaneous rate.
Statement B :
Instantaneous rate is measured by the determination of slope of the tangent at point ' \(t\) ' in concentration versus time plot.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII04:CHEMICAL KINETICS

320584 In the reaction of formation of sulphur trioxide by contact process, \(2 \mathrm{SO}_{2}+\mathrm{O}_{2} \rightleftharpoons 2 \mathrm{SO}_{3}\), the rate reaction was measured as \(\dfrac{\mathrm{d}\left[\mathrm{O}_{2}\right]}{\mathrm{dt}}=-2.5 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}\). The rate of reaction in terms of \(\left[\mathrm{SO}_{2}\right]\) in \({\rm{mol}}{\mkern 1mu} {{\rm{L}}^{{\rm{ - 1}}}}\;{{\rm{s}}^{{\rm{ - 1}}}}\) will be

1 \(-2.25 \times 10^{-4}\)
2 \(-5.00 \times 10^{-4}\)
3 \(-3.75 \times 10^{-4}\)
4 \(-2.50 \times 10^{-4}\)
JEE - 2014
CHXII04:CHEMICAL KINETICS

320585 For the reaction \(2 \mathrm{NO}+\mathrm{Cl}_{2} \rightarrow 2 \mathrm{NOCl}\)
What is the relation between \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}\) and
\(\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}} ?\)

1 \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=2 \dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
2 \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
3 \(\dfrac{1}{4} \dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
4 \(4 \dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
MHTCET - 2021
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CHXII04:CHEMICAL KINETICS

320581 Consider a general chemical change \({\rm{2\;A + 3\;B}} \to \) Products. The rate of consumption of \({\rm{A}}{\mkern 1mu} {\mkern 1mu} {\rm{is}}\,\,{{\rm{r}}_{\rm{1}}}\) and that of consumption of \({\rm{B}}\,\,{\rm{is}}\,\,{{\rm{r}}_{\rm{2}}}\). The rate \({{\rm{r}}_{\rm{1}}}\,\,{\rm{and}}\,\,{{\rm{r}}_{\rm{2}}}\) are related as

1 \({\rm{3}}{{\rm{r}}_{\rm{1}}}{\rm{ = 2}}{{\rm{r}}_{\rm{2}}}\)
2 \({\rm{2}}{{\rm{r}}_{\rm{1}}}{\rm{ = 3}}{{\rm{r}}_{\rm{2}}}\)
3 \({{\rm{r}}_{\rm{1}}}{\rm{ = }}{{\rm{r}}_{\rm{2}}}\)
4 \({\rm{r}}_{\rm{1}}^{\rm{2}}{\rm{ = 2r}}_{\rm{2}}^{\rm{2}}\)
CHXII04:CHEMICAL KINETICS

320582 For the reaction, \(4 \mathrm{~A}+\mathrm{B} \rightarrow 2 \mathrm{C}+2 \mathrm{D}\) which of the following statements is not correct?

1 Rate of disappearance of B is 1/4th of rate of disappearance of \(\mathrm{A}\).
2 Rate of formation of \(\mathrm{C}\) is \(1 / 2\) of rate of consumption of A.
3 Rate of appearance of \(\mathrm{D}\) is \(1 / 2\) of rate of disappearance of \(\mathrm{B}\).
4 Rate of formation of \(\mathrm{C}\) and \(\mathrm{D}\) are equal.
CHXII04:CHEMICAL KINETICS

320583 Statement A :
It is not always convenient to determine the instantaneous rate.
Statement B :
Instantaneous rate is measured by the determination of slope of the tangent at point ' \(t\) ' in concentration versus time plot.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII04:CHEMICAL KINETICS

320584 In the reaction of formation of sulphur trioxide by contact process, \(2 \mathrm{SO}_{2}+\mathrm{O}_{2} \rightleftharpoons 2 \mathrm{SO}_{3}\), the rate reaction was measured as \(\dfrac{\mathrm{d}\left[\mathrm{O}_{2}\right]}{\mathrm{dt}}=-2.5 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}\). The rate of reaction in terms of \(\left[\mathrm{SO}_{2}\right]\) in \({\rm{mol}}{\mkern 1mu} {{\rm{L}}^{{\rm{ - 1}}}}\;{{\rm{s}}^{{\rm{ - 1}}}}\) will be

1 \(-2.25 \times 10^{-4}\)
2 \(-5.00 \times 10^{-4}\)
3 \(-3.75 \times 10^{-4}\)
4 \(-2.50 \times 10^{-4}\)
JEE - 2014
CHXII04:CHEMICAL KINETICS

320585 For the reaction \(2 \mathrm{NO}+\mathrm{Cl}_{2} \rightarrow 2 \mathrm{NOCl}\)
What is the relation between \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}\) and
\(\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}} ?\)

1 \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=2 \dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
2 \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
3 \(\dfrac{1}{4} \dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
4 \(4 \dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
MHTCET - 2021
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CHXII04:CHEMICAL KINETICS

320581 Consider a general chemical change \({\rm{2\;A + 3\;B}} \to \) Products. The rate of consumption of \({\rm{A}}{\mkern 1mu} {\mkern 1mu} {\rm{is}}\,\,{{\rm{r}}_{\rm{1}}}\) and that of consumption of \({\rm{B}}\,\,{\rm{is}}\,\,{{\rm{r}}_{\rm{2}}}\). The rate \({{\rm{r}}_{\rm{1}}}\,\,{\rm{and}}\,\,{{\rm{r}}_{\rm{2}}}\) are related as

1 \({\rm{3}}{{\rm{r}}_{\rm{1}}}{\rm{ = 2}}{{\rm{r}}_{\rm{2}}}\)
2 \({\rm{2}}{{\rm{r}}_{\rm{1}}}{\rm{ = 3}}{{\rm{r}}_{\rm{2}}}\)
3 \({{\rm{r}}_{\rm{1}}}{\rm{ = }}{{\rm{r}}_{\rm{2}}}\)
4 \({\rm{r}}_{\rm{1}}^{\rm{2}}{\rm{ = 2r}}_{\rm{2}}^{\rm{2}}\)
CHXII04:CHEMICAL KINETICS

320582 For the reaction, \(4 \mathrm{~A}+\mathrm{B} \rightarrow 2 \mathrm{C}+2 \mathrm{D}\) which of the following statements is not correct?

1 Rate of disappearance of B is 1/4th of rate of disappearance of \(\mathrm{A}\).
2 Rate of formation of \(\mathrm{C}\) is \(1 / 2\) of rate of consumption of A.
3 Rate of appearance of \(\mathrm{D}\) is \(1 / 2\) of rate of disappearance of \(\mathrm{B}\).
4 Rate of formation of \(\mathrm{C}\) and \(\mathrm{D}\) are equal.
CHXII04:CHEMICAL KINETICS

320583 Statement A :
It is not always convenient to determine the instantaneous rate.
Statement B :
Instantaneous rate is measured by the determination of slope of the tangent at point ' \(t\) ' in concentration versus time plot.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII04:CHEMICAL KINETICS

320584 In the reaction of formation of sulphur trioxide by contact process, \(2 \mathrm{SO}_{2}+\mathrm{O}_{2} \rightleftharpoons 2 \mathrm{SO}_{3}\), the rate reaction was measured as \(\dfrac{\mathrm{d}\left[\mathrm{O}_{2}\right]}{\mathrm{dt}}=-2.5 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}\). The rate of reaction in terms of \(\left[\mathrm{SO}_{2}\right]\) in \({\rm{mol}}{\mkern 1mu} {{\rm{L}}^{{\rm{ - 1}}}}\;{{\rm{s}}^{{\rm{ - 1}}}}\) will be

1 \(-2.25 \times 10^{-4}\)
2 \(-5.00 \times 10^{-4}\)
3 \(-3.75 \times 10^{-4}\)
4 \(-2.50 \times 10^{-4}\)
JEE - 2014
CHXII04:CHEMICAL KINETICS

320585 For the reaction \(2 \mathrm{NO}+\mathrm{Cl}_{2} \rightarrow 2 \mathrm{NOCl}\)
What is the relation between \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}\) and
\(\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}} ?\)

1 \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=2 \dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
2 \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
3 \(\dfrac{1}{4} \dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
4 \(4 \dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
MHTCET - 2021
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CHXII04:CHEMICAL KINETICS

320581 Consider a general chemical change \({\rm{2\;A + 3\;B}} \to \) Products. The rate of consumption of \({\rm{A}}{\mkern 1mu} {\mkern 1mu} {\rm{is}}\,\,{{\rm{r}}_{\rm{1}}}\) and that of consumption of \({\rm{B}}\,\,{\rm{is}}\,\,{{\rm{r}}_{\rm{2}}}\). The rate \({{\rm{r}}_{\rm{1}}}\,\,{\rm{and}}\,\,{{\rm{r}}_{\rm{2}}}\) are related as

1 \({\rm{3}}{{\rm{r}}_{\rm{1}}}{\rm{ = 2}}{{\rm{r}}_{\rm{2}}}\)
2 \({\rm{2}}{{\rm{r}}_{\rm{1}}}{\rm{ = 3}}{{\rm{r}}_{\rm{2}}}\)
3 \({{\rm{r}}_{\rm{1}}}{\rm{ = }}{{\rm{r}}_{\rm{2}}}\)
4 \({\rm{r}}_{\rm{1}}^{\rm{2}}{\rm{ = 2r}}_{\rm{2}}^{\rm{2}}\)
CHXII04:CHEMICAL KINETICS

320582 For the reaction, \(4 \mathrm{~A}+\mathrm{B} \rightarrow 2 \mathrm{C}+2 \mathrm{D}\) which of the following statements is not correct?

1 Rate of disappearance of B is 1/4th of rate of disappearance of \(\mathrm{A}\).
2 Rate of formation of \(\mathrm{C}\) is \(1 / 2\) of rate of consumption of A.
3 Rate of appearance of \(\mathrm{D}\) is \(1 / 2\) of rate of disappearance of \(\mathrm{B}\).
4 Rate of formation of \(\mathrm{C}\) and \(\mathrm{D}\) are equal.
CHXII04:CHEMICAL KINETICS

320583 Statement A :
It is not always convenient to determine the instantaneous rate.
Statement B :
Instantaneous rate is measured by the determination of slope of the tangent at point ' \(t\) ' in concentration versus time plot.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII04:CHEMICAL KINETICS

320584 In the reaction of formation of sulphur trioxide by contact process, \(2 \mathrm{SO}_{2}+\mathrm{O}_{2} \rightleftharpoons 2 \mathrm{SO}_{3}\), the rate reaction was measured as \(\dfrac{\mathrm{d}\left[\mathrm{O}_{2}\right]}{\mathrm{dt}}=-2.5 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}\). The rate of reaction in terms of \(\left[\mathrm{SO}_{2}\right]\) in \({\rm{mol}}{\mkern 1mu} {{\rm{L}}^{{\rm{ - 1}}}}\;{{\rm{s}}^{{\rm{ - 1}}}}\) will be

1 \(-2.25 \times 10^{-4}\)
2 \(-5.00 \times 10^{-4}\)
3 \(-3.75 \times 10^{-4}\)
4 \(-2.50 \times 10^{-4}\)
JEE - 2014
CHXII04:CHEMICAL KINETICS

320585 For the reaction \(2 \mathrm{NO}+\mathrm{Cl}_{2} \rightarrow 2 \mathrm{NOCl}\)
What is the relation between \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}\) and
\(\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}} ?\)

1 \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=2 \dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
2 \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
3 \(\dfrac{1}{4} \dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
4 \(4 \dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
MHTCET - 2021
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CHXII04:CHEMICAL KINETICS

320581 Consider a general chemical change \({\rm{2\;A + 3\;B}} \to \) Products. The rate of consumption of \({\rm{A}}{\mkern 1mu} {\mkern 1mu} {\rm{is}}\,\,{{\rm{r}}_{\rm{1}}}\) and that of consumption of \({\rm{B}}\,\,{\rm{is}}\,\,{{\rm{r}}_{\rm{2}}}\). The rate \({{\rm{r}}_{\rm{1}}}\,\,{\rm{and}}\,\,{{\rm{r}}_{\rm{2}}}\) are related as

1 \({\rm{3}}{{\rm{r}}_{\rm{1}}}{\rm{ = 2}}{{\rm{r}}_{\rm{2}}}\)
2 \({\rm{2}}{{\rm{r}}_{\rm{1}}}{\rm{ = 3}}{{\rm{r}}_{\rm{2}}}\)
3 \({{\rm{r}}_{\rm{1}}}{\rm{ = }}{{\rm{r}}_{\rm{2}}}\)
4 \({\rm{r}}_{\rm{1}}^{\rm{2}}{\rm{ = 2r}}_{\rm{2}}^{\rm{2}}\)
CHXII04:CHEMICAL KINETICS

320582 For the reaction, \(4 \mathrm{~A}+\mathrm{B} \rightarrow 2 \mathrm{C}+2 \mathrm{D}\) which of the following statements is not correct?

1 Rate of disappearance of B is 1/4th of rate of disappearance of \(\mathrm{A}\).
2 Rate of formation of \(\mathrm{C}\) is \(1 / 2\) of rate of consumption of A.
3 Rate of appearance of \(\mathrm{D}\) is \(1 / 2\) of rate of disappearance of \(\mathrm{B}\).
4 Rate of formation of \(\mathrm{C}\) and \(\mathrm{D}\) are equal.
CHXII04:CHEMICAL KINETICS

320583 Statement A :
It is not always convenient to determine the instantaneous rate.
Statement B :
Instantaneous rate is measured by the determination of slope of the tangent at point ' \(t\) ' in concentration versus time plot.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII04:CHEMICAL KINETICS

320584 In the reaction of formation of sulphur trioxide by contact process, \(2 \mathrm{SO}_{2}+\mathrm{O}_{2} \rightleftharpoons 2 \mathrm{SO}_{3}\), the rate reaction was measured as \(\dfrac{\mathrm{d}\left[\mathrm{O}_{2}\right]}{\mathrm{dt}}=-2.5 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}\). The rate of reaction in terms of \(\left[\mathrm{SO}_{2}\right]\) in \({\rm{mol}}{\mkern 1mu} {{\rm{L}}^{{\rm{ - 1}}}}\;{{\rm{s}}^{{\rm{ - 1}}}}\) will be

1 \(-2.25 \times 10^{-4}\)
2 \(-5.00 \times 10^{-4}\)
3 \(-3.75 \times 10^{-4}\)
4 \(-2.50 \times 10^{-4}\)
JEE - 2014
CHXII04:CHEMICAL KINETICS

320585 For the reaction \(2 \mathrm{NO}+\mathrm{Cl}_{2} \rightarrow 2 \mathrm{NOCl}\)
What is the relation between \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}\) and
\(\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}} ?\)

1 \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=2 \dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
2 \(\dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
3 \(\dfrac{1}{4} \dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
4 \(4 \dfrac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\dfrac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\)
MHTCET - 2021