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The sum of the power to which the c...

The sum of the power to which the concentration of substance apears in the rate expression is known as _______.

A

rate of reaction

B

molecularity of reaction

C

order of reaction

D

none

Text Solution

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For a reaction `A + B to` Product, if rate = `k[A]^m[B]^n`, then order of reaction = m + n.
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Assertion (A) : The order of a reaction may be defined as the sum of the powers to which the concentration terms are raised in order to determine the rate of reaction gives the total order of reactions. Reason (R) : The number of molecules whose concentrations determine the ratio of reaction at a given temperature is called order to the reaction.

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NIKITA PUBLICATION-CHEMICAL KINETICS -MCQs
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  2. Which of the following is a reaction of first order ?

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  4. The decomposition of acetaldehyde is a reaction of the order

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  5. If concentration of reactant is increased by 'm' then k becomes :

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  6. The reactions of higher order are rare because

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  7. The rate of fchemical reaction depends on the nature of chemical react...

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  8. Unit of rate constant depends on

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  9. Reaction AtoB follows second order kinetics. Doubling the concentratio...

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  10. The given reaction 2FeCl3 + Sn Cl2 to 2FeCl + Sn Cl4 is an exampl...

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  11. For a reaction, 2A +B to C + D ,-(d[A])/(dt)=k[A]^2[B]. The expressi...

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  12. The rate constant of a reaction changes when

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  13. In many reactions, the reaction proceeds in a sequence of stemps, so t...

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  14. In which of the following case does the reaction go farthest to comple...

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  15. Which will lead to a change in the rate constant k of a reaction

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  16. The unit of rate constant for zero order reaction is :

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  17. The rate of a reaction can be increased in general by all the factors ...

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  18. The rate constant of a reaction has same dimensions as rate of reactio...

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  19. Which is not used in the determination of reaction rates

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  20. The rate constant of a reaction is 2.5xx10^(-2) "minutes"^(-1) The ord...

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