Question # 1

Photochemical smog consist of excessive amount of X in addition to aldehydes ketones, PAN etc. X is.

Choose an answer

Methane

Carbon monoxide

Ozone

Carbondioxide

Ozone hole refers to.

Choose an answer

Black hole

Decrease to thickness of ozone layer in stratosphere

Decrease of thickness of ozone in troposphere

Increase concentration of ozone in the atmosphere

Which of the following phenomenon are driven by solar energy.

Choose an answer

Winds

Water cycle

Production of biomass

All above

Solar energy mainly light originates from sun due to.

Choose an answer

Addition relations

Displacement reactions

Thermonuclear reactions

Substitution reactions

The main active contaminants of uranium processing are.

Choose an answer

U - 235

U-238

Pu -234

All above

Which of the following energy is trapped by the autotrophic organisms.

Choose an answer

Mechanical energy

Electrical energy

Radiant energy

Electronic energy

Temporary hard water is softened on industrial scale by adding.

Choose an answer

Mg(OH)2

Ca(OH)2

KOH

NaOH

The expected specific waste of food industry is.

Choose an answer

Meats

Nuts

Fats or Oils

All above

Which of the following is a non degradable pollutant.

Choose an answer

Long chain phenoiics

DDT

Mercuric salts

All above

SO2 is generated from which of the following industry.

Choose an answer

Drying and packing

Paper

Pulp

paper and pulp

Ozone layer of upper atmosphere is being destroyed by

Choose an answer

chlorofluorocarbons

SO2

Photochemical oxidants O2 and CO2

Smog

As it passes into food chain, the concentration of DDT

Choose an answer

Remains same

Decreases

Increases

Unpredictable

Which of the following statement is not correct with respect to harmful effects of ground water pollution.

Choose an answer

It causes lungs cancer

It causes jaundice

It damages crops

It helps to prevent epidermises

Permanent hard water is softened by addition of.

Choose an answer

Na2CO3

CaCO3

MgCO3

ZnCO3

The smog is essentially caused by the presence of.

Choose an answer

O3 and N2

O2 and N2

Oxides of sulphur and nitrogen

O2 and O3

Carbon dioxide content in atmosphere is

Choose an answer

0.0034%

0.034 %

0.34 %

3.4 %

For an average exposure of 8 hours per day, the maximum permissible concentration limit of CO in the atmosphere is.

Choose an answer

50 ppm

500 ppm

10³ ppm

20 ppm

Which of the following statement is related with CO.

Choose an answer

It is a colorless and tasteless gas

It has less affinity to words hemoglobin

It has a boiling point of -192 ^oC

It is a dangerous asphyxiant

Which of the following statement is not relevant with nitrous oxide.

Choose an answer

It is a colorless and odourless gas

It is non toxic gas

It is present in the atmosphere in higher concentration

It has high reactivity in the lower atmosphere

Which of the following substance is released into environment in the nuclear power plants.

Choose an answer

Iodine -131

Argon - 41

Sr-90

Cs- 137

All above

Which of the following disposal method is used or municipal wastes.

Choose an answer

Compaction

Composting

Recycling

Chemical processing

All above

More Classes

Other Links

PPSC Chemistry Part V Environmental Chemistry 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

Choose an answer

Choose an answer

Choose an answer

Choose an answer