Live Education Quiz

1

Chemical equilibrium can be achieved in:

A Open system only B Closed system only C Any system D Vacuum

2

An increase in temperature favors the:

A Endothermic reaction B Exothermic reaction C Neutral reaction D No reaction

3

Petroleum is a mixture of:

A Pure hydrocarbons B Single compound C Various hydrocarbons D Salts and acids

4

Urea is mainly used as:

A Fuel B Fertilizer C Explosive D Solvent

5

The pH value of a neutral solution is:

A 0 B 5 C 7 D 14

6

The reaction between an acid and a base produces:

A Gas B Acid only C Salt and water D Metal oxide

7

Chemical equilibrium is called dynamic because:

A The reaction stops completely B Forward and reverse reactions continue at equal rates C Reactants are used up D Products decompose continuously

8

A substance that can donate a proton is called:

A Lewis acid B Arrhenius base C Bronsted–Lowry acid D Bronsted–Lowry base

9

For a reversible reaction, if Kc is very large, it indicates:

A Reaction favors reactants B Reaction favors products C Reaction is very slow D No reaction occurs

10

Which chemical is responsible for depletion of ozone layer?

A CO₂ B SO₂ C CFCs D NO₂

11

The atmosphere mainly consists of:

A Oxygen B Carbon dioxide C Nitrogen D Hydrogen

12

Which industrial product is obtained from sulphuric acid?

A Soap B Fertilizers C Glass D Cement

13

The main function of fertilizers is to:

A Kill pests B Increase soil fertility C Control pollution D Increase rainfall

14

Chemical industries are important because they:

A Reduce population B Increase unemployment C Provide useful products D Destroy environment only

15

The raw material for urea manufacture includes:

A Ammonia and carbon dioxide B Nitrogen and oxygen C Sulphur dioxide D Methane only

16

A catalyst at equilibrium:

A Shifts equilibrium B Stops reaction C Does not change equilibrium position D Consumes reactants

17

Smog is a mixture of:

A Smoke and fog B Gas and dust C Water and oxygen D Nitrogen and oxygen

18

Industrial waste water should be:

A Released directly B Heated C Treated before disposal D Stored permanently

19

According to Arrhenius theory, an acid is a substance that produces:

A OH⁻ ions in water B H⁺ ions in water C Salt in water D Electrons

20

Increasing pressure shifts equilibrium towards the side with:

A More moles of gas B Equal moles of gas C Less moles of gas D No gas molecules

Ch 14