Environmental Chemistry Test

Result

Environmental Chemistry Test - 14

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Which method is used to degrade the waste by microorganism in the absence of oxygen?

A
Dumping

B
Composting

C
Digesting

D
Incineration

Solution

Anaerobic digestion is a series of biological processes in which microorganisms break down biodegradable material in the absence of oxygen. One of the end products is biogas, which is combusted to generate electricity and heat, or can be processed into renewable natural gas and transportation fuels.
Question 2
1 / -0

Which of the following is not primary pollutant?

A
$$SO_2$$

B
$$H_2S$$

C
$$CO$$

D
$$SO_3$$
Solution
Primary Pollutants are the ones which are injected into the atmosphere directly. Examples include:
1. Carbon monoxide (CO)
2. Oxides of nitrogen ($$N{ O }_{ x },NO$$ )
3. Sulfur oxides ($$S{ O }_{ x }$$)
4. Volatile organic compounds (VOCs)
5. Particulate matter (dust, ash, salt particles)
Question 3
1 / -0

Green chemistry is:

A
way of thinking and utilising the existing knowledge and principles of chemistry and other sciences

B
study of plants for making the environment clean

C
both A and B

D
None of the above

Solution

Green chemistry, also called sustainable chemistry, is an area of chemistry and chemical engineering focused on the designing of products and processes that minimize the use and generation of hazardous substances.
Green chemistry applies across the life cycle of a chemical product, including its design, manufacture, use, and ultimate disposal
Question 4
1 / -0

Reasons of water pollution includes _____.

A
Discharge of untreated sewage

B
Burning of fossil fuels

C
Loss of habitat

D
Climatic changes

Solution

Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater). This form of environmental degradation occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds.
Question 5
1 / -0

Which of these are particulates?

A
Dust and fumes

B
Fly ash and smoke

C
Mist and fumes

D
All of these

Solution

PM stands for particulate matter (also called particle pollution) the term for a mixture of solid particles and liquid droplets found in the air. Some particles, such as dust, dirt, fumes, soot, smoke, mist or fly ash are large or dark enough to be seen with the naked eye.
Question 6
1 / -0

_______ is an environment-friendly product and better than halons which are used to extinguish fire.

A
Ibuprofen

B
Pyrocool

C
Carcinogen

D
Carbon-dioxide

Solution

Pyrocool is a product which is environmentally benign foam discovered using concept of Green chemistry. Large-scale fires such as oil tankers and jet airplane can be extinguished in a short time and in a better way than previous use of the halons.
Question 7
1 / -0

Industrial waste include:

A
chemical solvents, paints

B
sandpaper, paper products

C
industrial by-products, radioactive waste

D
all the above

Solution

Industrial waste is the waste produced by industrial activity which includes any material that is rendered useless during a manufacturing process such as that of factories, industries, mills, and mining operations. It has existed since the start of the Industrial Revolution. Some examples of industrial wastes are chemical solvents, paints, sandpaper, paper products, industrial by-products, metals, and radioactive wastes.
Question 8
1 / -0

$$pH$$ of the rain is increased in heavy industrial area due to:

A
acid rain

B
land pollution

C
water pollution

D
none of the above

Solution

Acid rain is the emission of oxides of sulphur and nitrogen in the atmosphere. This includes burning of fossil fuels containing sulphur and nitrogenous matter (such as coal and oil in furnaces and power stations, petrol and diesel in automobiles).
Due to increase in acid gases in rain, the pH will change due to acid rain.
Question 9
1 / -0

Height of Stratosphere above earth's surface in (Km) is:

A
0-10

B
10-50

C
50-85

D
85-100

Solution

The stratosphere is the second major layer of Earth's atmosphere, just above the troposphere, and below the mesosphere. It starts at 10–13 km (33,000–43,000 ft; 6.2–8.1 mi) and ends at 50 km (160,000 ft; 31 mi).
Question 10
1 / -0

Which of them are Non-biodegradable waste?

A
Synthetic fibers

B
Pen refills

C
Silver foil

D
All of above

Solution

The waste materials which cannot be broken down into non-poisonous or harmless substances in nature are called non-biodegradable waste.
Examples are plastics, polythene bags, ball-point pen refills, synthetic fibres, and glass objects, metal articles like aluminium cans, iron nails, silver foil and radioactive wastes.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Environmental Chemistry Test - 14

Result

Environmental Chemistry Test - 14

Score

-

Rank

-

SHARING IS CARING

Question 1

Dumping

Composting

Digesting

Incineration

Solution

Question 2

$$SO_2$$

$$H_2S$$

$$CO$$

$$SO_3$$

Solution

Question 3

way of thinking and utilising the existing knowledge and principles of chemistry and other sciences

study of plants for making the environment clean

both A and B

None of the above

Solution

Question 4

Discharge of untreated sewage

Burning of fossil fuels

Loss of habitat

Climatic changes

Solution

Question 5

Dust and fumes

Fly ash and smoke

Mist and fumes

All of these

Solution

Question 6

Ibuprofen

Pyrocool

Carcinogen

Carbon-dioxide

Solution

Question 7

chemical solvents, paints

sandpaper, paper products

industrial by-products, radioactive waste

all the above

Solution

Question 8

acid rain

land pollution

water pollution

none of the above

Solution

Question 9

0-10

10-50

50-85

85-100

Solution

Question 10

Synthetic fibers

Pen refills

Silver foil

All of above

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.