Question # 1

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1

2

3

None of these

Which statement is incorrect about order of reaction

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It cannot be determined experimentally

It is determined experimentally

Sum of exponents in rate equation

It can have fraction value

Half life period for 235 U is

92

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710 million years

810 milion years

720 million years

820 million years

In zero order reaction the rate is independent of.

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Temperature of reaction

Concentration of reactants

Concentration of products

None of these

A type of meals are usually used as catalyst.

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Coinage metal

Alkali metals

Transition metals

alkaline earth metals

When a reaction proceeds in a sequence of steps, the overall rate is determined by

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Fastest step

Slowest step

Order of different steps

Molecularity of all steps

If the energy of the activated complex lies close to energy of reactants, it means that reaction is

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Slow

Fast

Exothermic

Endothermic

Glucose can be converted into ethanol by an enzyme.

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Lipase

Zymase

Sucrose

Urease

When a reaction occurs in many steps than the slowest step is.

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Mechanism step

Rate determining step

enthalpy determining step

None of the above

the rate of reaction when concentration of reactants are taken unity is called.

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Average rate

Instantaneous rate

Specific rate

Rate equation

In zero order reaction, the rate is independent of.

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Temperature of reaction

Concentration of reactants

concentration of products

None of these

Dilatometer method is useful for the reactions that involve.

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Ionic species

Where reactant absorb U.V. visible or infrared radiations

Small volume changes in solutions

Change in refractive indices

Which technique is used ot determine the absorption of radiations.

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Spectrometry

dilatometer method

Refractometric method

Optical rotation method

The rate of reaction

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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

Half -Life for a given reaction is doubled if initial concentration is doubled. The order of reaction is.

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0

1

2

3

All radio active disintegration nuclear reaction are of.

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First order

Zero order

2nd order

Third order

The rate of reaction

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Increases

Decreases

Remains the same

May decrease of increase

The unit of rate constant is same as that of rate of reaction in

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first order reaction

Second order reaction

Third order reaction

Zero order reaction

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Chemistry Fsc Part 1 Chapter 11 Online Test MCQs With Answers

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