Chemistry Multiple Choice Questions Set – 14

Question 1.

A powerful eye irritant present in smog is

A. Nitric oxide
B. Sulphur dioxide
C. Peroxyacetyl nitrate
D. Carbon dioxide

C. Peroxyacetyl nitrate

Question 2.

Main pollutant present in automobile exhaust is

A. CO
B. CO2
C. NO
D. Hydrocarbons

A. CO

Question 3.

The constituents of automobile exhaust that can cause cancer is/are :

A. Oxides of nitrogen
B. Carbon monoxide
C. Polycyclic hydrocarbons
D. Lead

D. Lead

Question 4.

Which of the following pollutants is main product of automobile exhaust ?

A. CO
B. CO2
C. NO
D. Hydrocarbons

C. NO

Question 5.

Which of the following is not a natural source of air pollution ?

A. Volcanic eruptions and lightening discharge
B. Biological decay of vegetable matter
C. Photochemical oxidation of organic number
D. None of the above

D. None of the above

Question 6.

The liquid waste from kitchens and baths, of residences is known as :

A. Domestic sewage
B. Storm water
C. Sullage
D. Refuse

C. Sullage

Question 7.

The acid rain destroys vegetations because it contains

A. Nitric acid
B. Ozone
C. Carbon monoxide
D. Sulphuric acid

D. Sulphuric acid

Question 8.

The smog is essentially caused by the presence of

A. O3 and N2
B. O2 and N2
C. Oxides of N and S
D. O2 and O3

C. Oxides of N and S

Question 9.

CNG used in automobiles to check pollution, mainly consists of

A. CH4
B. CO2
C. N2
D. H2

A. CH4

Question 10.

Most poisonous pollutant in water is

A. Zinc
B. Phosphate
C. Arsenic
D. Detergent

C. Arsenic

Question 11.

Of the following, which one pollutes the air of a big city ?

A. Copper
B. Chromium
C. Lead
D. Cadmium

C. Lead

Question 12.

The depletion in Ozone layer is caused by __ .
A. Nitrous oxide
B. Carbon dioxide
C.Chlorofluorocarbons
D. Methane

C.Chlorofluorocarbons

Question 13.

What are the major pollutants of cigarette smoke?

A. Carbon monoxide and dioxin
B. Carbon monoxide and nicotine
C. Carbon monoxide and benzene
D. Dioxin and benzene

B. Carbon monoxide and nicotine

Question 14.

Which of the following can be found as pollutants in the drinking water in some parts of India? Select the correct answer using the code given below.
(A) Arsenic
(B) Sorbitol
(C) Fluoride
(D) Formaldehyde
(E) Uranium

A. B, D and E
B. A, B, C, D and E
C. A, C and E
D. A and C

C. A, C and E

Question 15.

Of the following which one pollutes the air of a big city ?

A. Copper
B. Chromium
C. Lead
D. Calcium

C. Lead

Question 16.

Which of the following is the maximum number of electrons that can be present in M-shell?

A. 2
B. 8
C. 18
D. 32

C. 18

Question 17.

Which of the following metals is not a pollutant ?

A. Mercury
B. Arsenic
C. Lead
D. Aluminium

D. Aluminium

Question 18.

Smog is

A. Nothing but black smoke
B. A combination of smoke and fog
C. A liquid particle resulting from vapour condensation
D. A solid particle, e.g., fllyash

B. A combination of smoke and fog

Question 19.

Which of the following is usually not an air-pollutant?

A. Hydrocarbons
B. Sulphur dioxide
C. Carbon dioxide
D. Nitrous oxide

D. Nitrous oxide

Question 20.

Atoms of different elements have

A. Same atomic number and same electronic configuration
B. Different atomic number and same eletronic configu-ration
C. Different atomic number and different number of valence electrons
D. Same number of electrons and neutrons

C. Different atomic number and different number of valence electrons

Chemistry GK MCQs all set

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