Engineering Chemistry Integrated Rate Equation Half Lives Online Exam Quiz

Engineering Chemistry Integrated Rate Equation Half Lives GK Quiz. Question and Answers related to Engineering Chemistry Integrated Rate Equation Half Lives. MCQ (Multiple Choice Questions with answers about Engineering Chemistry Integrated Rate Equation Half Lives

The order of the reaction, if the time of half-completion is changed from 50 sec to 25 sec, when the initial concentration is changed from 0.5 to 1M will be ___________

Options

A : 0

B : 1

C : 2

D : 3

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The half life period of first order reaction is 15 min. Its rate constant will be equal to ___________

Options

A : 0.0462 min-1

B : 0.462 min-1

C : 0.00462 min-1

D : 0.562 min-1

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A compound decomposes according to the first order rate law with a half life period of 30 min. What will be the fraction of the remaining compound after 120 min?

Options

A : 0.625

B : 0.0625

C : 0.25

D : 0.025

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In a first order reaction, the time required for the completion of 99% is _______ times the time required for the completion of half of the reaction.

Options

A : 5

B : 10

C : 20

D : 50

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For a first order reaction, the half life period is independent of the ___________

Options

A : Initial concentration of the reactants

B : Final concentration of the reactants

C : Rate constant

D : Concentration of products

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The half life period of nth order reaction varies inversely to ____________ th power of the initial concentration of the reactants.

Options

A : n

B : 2n

C : (n+1)

D : (n-1)

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Which of the following is not an example of second order reaction?

Options

A : Oxidation of hydrogen bromide

B : Saponification of ester

C : Acid catalyzed hydrolysis of ester

D : Gaseous decomposition of hydrogen iodide

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Which of the following is not an example of zero order reaction?

Options

A : Photochemical combination of hydrogen and chlorine

B : Decomposition of ammonia over molybdenum surface

C : Thermal decomposition of HI on gold surface

D : Inversion of cane sugar in the presence of mineral acids

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The half-life period of zero order reaction is directly proportional to the ___________

Options

A : Rate constant

B : Initial concentration of reactants

C : Final concentration of reactants

D : Concentration of products

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In a first order reaction, the time required for the completion of 99% is _______ for its 90% completion.

Options

A : Same

B : Negligible

C : Thrice

D : Twice

View Answer

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