Question # 1

Sea gets polluted bu accidental oil spills and

Choose an answer

Atmospheric pressure

Nitrogen gas

Cargo oil tankers

Aero plane

How many times a newspaper can be recycled

Choose an answer

02

05

08

10

99.5% mass of lithosphere is made of

Choose an answer

03 elements

8 elements

11 elements

15 elements

The pH range of acid rain is?

Choose an answer

7-6.5

6.5-6

6-5.6

Less than 5

Chemical equilibrium involving reactants and products in more than one phase is called:

Choose an answer

Homogeneous

Heterogeneous

Dynamic

Static

Which not a method for solid waste management>

Choose an answer

Landfill

Incinerating

Recycling

None of these

The temperature of in the incineration of industrial and hazardous waste process has range

Choose an answer

900 - 1000°C

250 - 500°C

950 - 1300°C

500 - 900°C

Major cause of SO2 on global scale is

Choose an answer

Volcanoes

Electric sparks

Combustion

All

The morality of the solution containing x grams ammonium sulfate in 500cm3 of the solution is 0.6 what is x?

Choose an answer

39.6

40.5

42.7

45.1

CFC's are known to cause depletion of ozone layer therefore their use has been banned in refrigerators and air conditioners. Which alternate compound may be suitable to replace CFC

Choose an answer

CCl₄

CHCl₃

CH₃- CH₂- CH₂- CH₃

CHCl₂- CHF₂

Elements in lithosphere exist generally as:

Choose an answer

metals

non-metals

metalloids

minerals

Main cause of reducing map is:

Choose an answer

Combustion of coal

NO and NO₂

Un-burnt hydrocarbons

All of these

Temporary hardness can be removed by adding

Choose an answer

Lime

Carbon

Oxygen

Slaked lime

Ozone in stratosphere extends upto km:

Choose an answer

0-15 km

10-15 km

15-40 km

15-25 km

The film forming components of paints are

Choose an answer

resins

thinners

pigments

driers

Chromium (VI) is highly toxic and can cause

Choose an answer

Blindness

Cancer

Liver problems

Blood problems

The words smog is a combination of smoke and:

Choose an answer

fog

foke

fork

fizzy

Exposure to CO results in

Choose an answer

Headche

Fatigue

Unconsciousness

All of these

Property due to which water acts as a universal solvent is

Choose an answer

Polarity

It's ability to make hydrogen bond

Both A and B

Strong dipole dipole interaction

Heat balance of earth is maintained by

Choose an answer

Atmosphere

Hydrosphere

Lithosphere

Stratosphere

Density of water becomes maximum at

Choose an answer

10°C

4°C

5°C

12°C

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