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The order of reaction may ......... same...

The order of reaction may ......... same as molecularity of the same reaction.

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What is meant by molecularity of a reaction ?

The order of reaction may be a fractional number.

Assertion (A) : The order of a reaction can be fractional but molecularity is never fractional. Reason (R ): The order of reaction does not depend upon the stoichiometric coefficients of a balanced equation.

Assertion : Complex reaction takes place in different steps and the slowest step determines the rate of reaction. Reason : Order and molecularity of a reaction are always equal.

Write two differences between 'order of reaction' and 'molecularity of reaction'.

What is meant by molecularity of a reaction ? Why the molecularity of a reaction rarely exceeds three?

What is the order of reaction whose rate constant has the same units as rate of reaction ?

The rate constant of a reaction has same units as the rate of reaction. The reaction is of:

ICSE-CHEMICAL KINETICS-EXERCISE (PART- I (OBJECTIVE QUESRTIONS)A.FILL IN THE BLANKS)
  1. In the equation k = A e^(-Ea//RT), the constant A is known as ...........

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  2. The unit of the rate of reaction is ............ and the unit of first...

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  3. In most reactions, the rate of reaction doubles or triples for ...... ...

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  4. A negative catalyst ......... the activation energy.

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  5. The order of a reaction rarely exceeds ...........

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  6. The order of reaction may ......... same as molecularity of the same r...

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  7. Threshold energy is always ....... than activation energy.

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  8. The rate of reaction ........ with increase in temperature.

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  9. The temperature coefficient of a reaction is the ratio of the rate con...

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  10. The second order reaction becomes first order if one of reactants is ....

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  11. Threshold energy minus the energy which the molecules actually possess...

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  12. The hydrolysis of ethyl acetate in ........ medium is...... order reac...

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  13. .......... of molecules containing more than activation energy is indi...

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  14. Which reaction order obeys the expression T(1//2) = 1/(K .A ) in chem...

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  15. A catalyst decreases .......... of a reaction.

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  16. For a relatively fast reaction, the rate constant is relatively………….an...

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  17. Reaction with low activation energy are ............ and the reactions...

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  18. Effective colliosions are those in which colloiding molecules must hav...

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  19. In the equation k = A e^(-Ea//RT), the constant A is known as ...........

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  20. The unit of the rate of reaction is ............ and the unit of first...

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