Reaction Kinetics in Chemistry Mcqs

Our collections of Multiple choice questions and answers focuses on study of Reaction Kinetics in Chemistry. These questions are chosen from a collection of most authoritative and best reference books on Chemistry. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate Reaction Kinetics in Chemistry comprehensively.

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Sciences MCQS

1.
The rate of reaction

Increases as the reaction proceeds

Decreases as the reaction proceeds

Remains the same as the reaction proceeds

May decrease or increase as the reaction proceeds

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2.
The addition of a catalyst to the reaction system

Increases the rate of forward reaction only

Increases the rate of reverse reaction

Increases the rate of forward but decreases the rate of backward reaction

Increases the rate of forward as well as backward reaction equally

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3.
The specific rate constant of a first order reaction depends on the

Time

Concentration of the reactant

Temperature

Concentration of the product

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4.
On increasing the temperature the rate of reaction increases mainly because

The activation energy of the reaction increases

Concentration of the reacting molecules increases

Collision frequency increases

None of these

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5.
?d[N2O5]/dt represents

Rate of formation of N2O5

Rate of decomposition of N2O5

Order of the reaction

None

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6.
The value of activation energy is primarily determined by

Temperature

Effective collision

Concentration of reactants

Chemical nature of reactants and products

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7.
Sum of exponents of molar concentration is called

Order of reaction

Molecularity

Rate of reaction

Average of reaction

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9.
In rate expression the concentration of reactants is negative. It shows

Concentration of reactant does not change

Concentration of product increases

Concentration of reactant decreases

Concentration of reactant increases

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11.
When a graph is plotted between 1/T on X-axis and log k on y-axis a straight line is obtained with a negative slope which has two end in

I and II quadrant

II and III quadrant

III and IV quadrant

II and IV quadrant

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12.
Rate of disappearance of reactant is equal to

Rate of reaction

Rate of formation of product

Energy released during reaction

A and b

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13.
Rate of reaction when concentration of reactants are taken as unity is called

Arrhenius constant

Molecularity

Specific rate constant

Ideal rate constant

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15.
For 3rd order reaction the hhalf life is inversely proportional to initial concentration of reactants

Single

Square

Cube

Raise to power four

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