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Quiz 10
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Q.1
White lung cancer is caused by
Asbestos
Silica
Textiles
Paper
Q.2
How many neutrons does iron have?
8
13
26
30
Q.3
Of the following, which one pollutes the air of a big city ?
Copper
Chromium
Lead
Cadmium
Q.4
Supersonic jet causes pollution by thinning of
O
3
layer
O
4
layer
SO
2
layer
CO
2
layer
Q.5
The pollutant responsible for ozone holes is ________
CO
2
SO
2
CO
CFC
Q.6
The mass number of a nucleus is
Always less than its atomic number
Always more than its atomic number
Always equal to its atomic number
Sometimes more and somtimes equal to its atomic number
Q.7
Which of the following metals is not a pollutant ?
Mercury
Arsenic
Lead
Aluminium
Q.8
What is the chemical symbol of mercury?
Mr
Mg
Hg
None of the above
Q.9
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
B, D and E
A, B, C, D and E
A, C and E
A and C
Q.10
Which of the following is a natural polymer?
Bakelite
Nylon
Polythene
Starch
Q.11
Terylene is a condensation polymer of ethylene glycol and which acid?
Benzoic Acid
Salicylic acid
Phthalic acid
Terephthalic acid
Q.12
Which of the following is used as non-stick coating for cooking utensils?
Perspex
Styrofoam
Polystyrene
Teflon
Q.13
The main component of liquid bleach is:
Sodium chloride
Sodium hypochlorite
Hydrochloric acid
Sodium hypochlorate
Q.14
Which of the following is a man-made source of air pollution ?
Automobile exhaust
Forest fire
Bacterial action in soil and swamp areas
All of the above
Q.15
Of the following which one pollutes the air of a big city ?
Copper
Chromium
Lead
Calcium
Q.16
Which of the following is usually not an air-pollutant?
Hydrocarbons
Sulphur dioxide
Carbon dioxide
Nitrous oxide
Q.17
Major gaseous pollutant of the thermal power station is
H
2
S
NH
3
NO
2
SO
2
Q.18
Which of the following is a monoatomic gas?
Oxygen
Neon
Nitrogen
Fluorine
Q.19
The purest form of water in nature is
Rain water
Lake water
River water
Sea water
Q.20
Smog is
Nothing but black smoke
A combination of smoke and fog
A liquid particle resulting from vapour condensation
A solid particle, e.g., fllyash
Q.21
Plastic is a type of
Polyester
Polymer
Acrylic
None of the above
Q.22
The material known in commerce as Terylene is a
Synthetic fibre
Natural fibre
Modified natural fibre
Blend of cotton and silk
Q.23
The fibre least prone to catch fire is
Nylon
Polyester
Cotton
Terylene
Q.24
Water cycle refers to
An integrated attempt to recycle water in relatively arid regions
Constant movement of water from ocean to land and back to ocean once again
Scientific management of water in areas excessively plagued with water-logging
Water distribution in relatively dry areas
Q.25
Quartz is made of
Calcium Sulphate
Calcium Silicate
Sodium Sulphate
Sodium Silicate
Q.26
What is the product formed when sodium bicarbonate is heated strongly?
Sodium Carbonate
Sodium Hydroxide
Sodium Peroxide
Sodium Monoxide
Q.27
Bleaching powder is used in drinking water as a/an
Disinfectant
Antibiotic
Antiseptic
Coagulant
Q.28
Atomic number of an atom gives the number of which of the following ?
Electrons
Protons
Neutrons
Neutrons and protons
Q.29
The gas causing acid rain in an industrial area is
Carbon dioxide
Carbon monoxide
Sulphur dioxide
Methane
Q.30
In drinking water supply, which of the following treatments is not involved
Coagulation
Sedimentation
Softening
Disinfection
Q.31
Polythene is polymer of
Ethylene
Propylene
Acetylene
Aniline
Q.32
Nylon is a type of
Polyamide
Polyolefin
Polyester
Acrylic
Q.33
Which of the following is used to make light weight, but strong plastic ?
Nylon
Polythene
Polyvinyl Chloride
Methyl Methacrylate
Q.34
Permanent hardness of water may be removed by addition of
Alum
Sodium carbonate
Lime
Potassium Permangante
Q.35
Cement is formed by strongly heating a mixture of
Limestone and graphite
Limestone and clay
Chalk and graphite
Clay and graphite
Q.36
The process of removing calcium and magnesium from hard water is known as
Sedimentation
Filtration
Flocculation
Water softening
Q.37
The chemical bahaviour of an atom depends upon
The number of protons in its nucleus
The number of neutrons in the nucleus
The number of electrons orbiting around the nucleus
The number of nucleons in the nucleus
Q.38
The two metal ions that cause hardness to water are:
Calcium, Magnesium
Sodium, Calcium
Sodium, Potassium
Sodium, Magnesium
Q.39
The electronic configuration of an atom having atomic number ‘20’ is
2, 8, 10
2, 6, 8, 4
2, 8, 8, 2
2, 10, 8
Q.40
Glycol is used to manufacture which of the following ?
Nylon
Artificial silk
Terylene
Rubber
Q.41
In an oxygen molecule, two atoms are united by
One bond
Two bonds
Three bonds
Four bonds
Q.42
Nylon is made up of :
Polyamide
Polyester
Polyethylene
Polypropylene
Q.43
Atoms of same element having different mass numbers are called________
Isobars
Isotopes
Isotones
Isomers
Q.44
Atomic number is the number equal to
Protons
Electrons
Neutrons
None of the above
Q.45
Periodic table contains how many periods
6
7
8
10
Q.46
Which of the following fibres catches fire least ?
Nylon
Cotton
Rayon
Terricot
Q.47
Non-stick kitchenwares are coated with
PVC
Graphite
Teflon
Silicon
Q.48
The increasing abundance of green house gases in atmosphere has led to the following effect except
Global warming
Depletion of ozone layer in the stratosphere
Oxygen fertilization effect
Carbon dioxide ferilization effect
Q.49
Acid rain is caused due to pollution of atmosphere by
Oxides of carbon and nitrogen
Oxides of nitrogen and sulphur
Oxides of nitrogen and phosphorous
None of these
Q.50
What are the components responsible for acid rain?
Nitrogen monoxide (NO) and Carbon monoxide (CO)
Sulphur dioxide (SO
2
) and Nitrogen oxides (NO
x
)
Carbon dioxide (CO
2
) and Carbon monoxide (CO)
Oxides of carbon (CO
x
) and Oxides of nitrogen (NO
x
)
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