Question # 1

NO and NO₂gases in atmosphere are represented by

Choose an answer

NO

NO₄

NO_x

N_xO_y

The cause of minamata disease is the pollution of

Choose an answer

Arsenic (As) into atomosphere

Industrial waste having Hg

Organic waste in drinking H₂O

Oil spills in H₂O

Transportation causes to produce CO₂ in atmosphere:

Choose an answer

72%

73%

74%

75%

The normal amount of overhead ozone is

Choose an answer

350 DU

450 DU

400 DU

300 DU

Water is made disinfectant during purification of water to the step:

Choose an answer

aeration

coagulation

chlorination

treatment

Detergent greatly effects the

Choose an answer

Aquatic life

Modern life

Terrestrial life

Plants life

Incineration is a process in which solid waste is burned at high temperature ranging from

Choose an answer

500 to 600°C

900 to 1000°C

1000 to 1100°C

600 to 700°C

Biochemical oxygen demand is the capacity of organic matter in natural water to consume oxygen

Choose an answer

2 days

5 days

6 days

7 days

Choose the correct statements

Choose an answer

SO₂affects the nucleus

SO₂affects plasmodesmata

SO₂affects cell wall

SO₂affects all membrane systems

In the atosphere, CO₂is about

Choose an answer

0.01%

0.03%

0.05%

0.09%

An excellent source of energy without causing pollution is

Choose an answer

Fossil fuel

Sun

Petroleum

Nuclear reactor

Coal contains percentage of sulphur:

Choose an answer

1-9%

5-9%

6-9%

7-9%

Exposure to CO results in

Choose an answer

Headche

Fatigue

Unconsciousness

All of these

During incineration temperature range of non-rotating chamber is

Choose an answer

900-1000C°

650-1100C°

950-1300C°

700-900C°

Carbon Monoxide is:

Choose an answer

colouriess

orderless

high toxic

All of these

The main pollutant of leather in the waste water is due to the salt of:

Choose an answer

Lead

Chromium (VI)

Copper

Chromium (III)

Increased awareness of environmental issues has led chemists to develop products and processes that do not impact on the environment in terms of pollution or depletion of sources. To help chemist to achieve this aim, some principles are drawn. Which one is not the guiding principle

Choose an answer

Avoid waste production

Use no solvent

Use a catalyst

Devise a multistep procedure for synthesis of new compounds

Forms of waste products:

Choose an answer

Heat

Smoke

Solid

All of these

Oceans, rivers, streams, leaks, polar ice caps, glaciers and group water reservoirs are included in

Choose an answer

Atmosphere

Lithosphere

Hydrosphere

Biosphere

Water exist in only

Choose an answer

One state

Two state

Three states

4 states

Photochemical smog consists of higher concentration of:

Choose an answer

Oxidants

Ozone

a & b

NO₃

More Classes

Other Links

MDCAT Chemistry Chapter 21 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