Question # 1

The substance which decrease the activity of a catalyst is called.

Choose an answer

Promoter

Activator

Inhibitor

Positive catalyst

A substance which itself is not a catalyst but increases the activity of a catalyst is called.

Choose an answer

Promoter

Poisoner

Inhibitor

Enzyme

Choose an answer

1

2

3

None of these

All radio active disintegration nuclear reaction are of.

Choose an answer

First order

Zero order

2nd order

Third order

In zero order reaction, the rate is independent of.

Choose an answer

Temperature of reaction

Concentration of reactants

concentration of products

None of these

After 3 half life of a chemical reaction, amount of reactant un reactive will be.

Choose an answer

50%

25%

12.5%

6.25%

Unit of rate constant is the same as that of the rate of reaction in

Choose an answer

Zero order reaction

1st order reaction

2nd order reaction

3rd order reaction

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

Choose an answer

Mechanism step

Rate determining step

enthalpy determining step

None of the above

The quantitative relationship between rate and concentration is given by.

Choose an answer

Law of mass action

Rate law

Both of these

Le Chatelier's principle

Photosynthesis a photochemical reaction has order of reaction

Choose an answer

0

1

2

Fractional order

Dilatometer method is useful for the reactions that involve.

Choose an answer

Ionic species

Where reactant absorb U.V. visible or infrared radiations

Small volume changes in solutions

Change in refractive indices

When a chemical reaction is completed the

Choose an answer

Instantaneous rate > average rate

Instantaneous rate = average rate

Instantaneous rate is zero

Both average and instantaneous rates become zero

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

Choose an answer

Fastest step

Slowest step

Order of different steps

Molecularity of all steps

In zero order reaction the rate is independent of.

Choose an answer

Temperature of reaction

Concentration of reactants

Concentration of products

None of these

The reaction that involves gases, its rate does not depend upon

Choose an answer

Catalyst

Temperature

Moles dm^-3

Partial pressure

The power of which the concentration of a substance appears in the rate expression is known as

Choose an answer

order of reaction with respect to that substance

Rate of reaction

Order of reaction

Molecularity of reaction

Half life period for 235 U is

92

Choose an answer

710 million years

810 milion years

720 million years

820 million years

More Classes

Other Links

Chemistry Fsc Part 1 Chapter 11 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer