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Quiz 9
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Q.1
The chemical name of baking soda is
Sodium carbonate
Sodium bicarbonate
Sodium chloride
Sodium nitrate
Q.2
What is the chemical name for ‘Baking Soda’ ?
Sodium carbonate
Sodium bicarbonate
Sodium nitrite
Sodium nitrate
Q.3
The chemical name of ‘Common salt’ is
Sodium chloride
Sodium nitrate
Ammonium chloride
Calcium chloride
Q.4
A pungent smell often present near the urinals is due to
Sulphur dioxide
Chlorine
Ammonia
Urea
Q.5
What is 'milk of magnesia' chemically?
Magnesium carbonate
Sodium bicarbonate
Calcium hydroxide
Magnesium hydroxide
Q.6
Which one of the following is a micro-element ?
Chlorine
Hydrogen
Nitrogen
Oxygen
Q.7
Normal rainwater has a pH level of
3.2
5.6
6.3
8.3
Q.8
Which one of the following is used as preservative for foodstuff ?
Sodium Benzoate
Picric acid
Glycerine
Sodium Chloride
Q.9
Saline soil contains
High concentration of salt
Lot of moisture
Hard rocks
None of the above
Q.10
Sour milk contains
Acetic acid
Tartaric acid
Citric acid
Lactic acid
Q.11
The pH of lemon juice is expected to be
Equal to 7
More than 7
Less than 7
Nothing can be predicted
Q.12
The main source of Naphthalene is
Charcoal
Camphor
Coal-tar
Diesel
Q.13
Food cans are coated with tin and not with zinc because
Zinc is costlier than tin
Zinc has a higher melting point than tin
Zinc is more reactive than tin
Zinc is less reactive than tin
Q.14
Cinnabar is an ore/mineral of
Lead
Manganese
Molybdenum
Mercury
Q.15
Which of the following processes is used for the production of Biodiesel ?
Transamination
Transcription
Transesterification
Translation
Q.16
Atoms having the same number of protons but different number of neutrons are called :
Isotopes
Cations
Higgs-boson
Anions
Q.17
Ammonial is a mixture of
Aluminium powder and ammonium nitrate
Aluminium powder and ammonium chloride
Aluminium powder and ammonium sulphate
Aluminium powder and potassium nitrate
Q.18
All isotopes of the same element have ________
Different atomic numbers and different atomic mass
Different atomic numbers and the same atomic mass
The same atomic number but different atomic masses
The same atomic number and the atomic mass
Q.19
The fundamental particles present in the nucleus of an atom are
Electron, proton
Proton, neutron
Neutron, electron
Neutron, positron
Q.20
A powerful eye irritant present in smog is
Nitric oxide
Sulphur dioxide
Peroxyacetyl nitrate
Carbon dioxide
Q.21
Main pollutant present in automobile exhaust is
CO
CO
2
NO
Hydrocarbons
Q.22
Which of the following pollutants is main product of automobile exhaust ?
CO
CO
2
NO
Hydrocarbons
Q.23
Which of the following appeared to be with a significant potential for accumulation through food chains ?
DDT
Parathion
Lindane
Carbaryl
Q.24
The constituents of automobile exhaust that can cause cancer is/are :
Oxides of nitrogen
Carbon monoxide
Polycyclic hydrocarbons
Lead
Q.25
The acid which fails to liberate carbon dioxide from sodium bicarbonate is :
Acetic acid
Formic acid
Carbonic acid
Sulphuric acid
Q.26
Basicity of boric acid, H
3
BO
3
is
2
3
4
5
Q.27
Antacids are found in drugs that give relief to
Eye sight
Stomach ache
Acne
Headache
Q.28
The percentage of carbon in cast iron is :
0.01 to 0.25
0.5 to 1.5
6 to 8
3 to 5
Q.29
Chemical properties of isotopes
Must be same
Must be different
Need not be same
Need not be different
Q.30
Which of the following does the nucleus of an atom consists of?
Protons and neutrons
Protons and electrons
Electrons
Protons
Q.31
J.J. Thomson’s proposed model of atom is generally called ________ model.
Cream and cake
Plum and pudding
Plum and cake
Cream and pudding
Q.32
What particles move around the nucleus of an atom and are negatively charged?
Electrons
Protons
Positrons
Neutrons
Q.33
Which of the following is not a natural source of air pollution ?
Volcanic eruptions and lightening discharge
Biological decay of vegetable matter
Photochemical oxidation of organic number
None of the above
Q.34
Nylon threads are made of
Polyester polymer
Polyamide polymer
Polyvinyl polymer
Polysaccharide
Q.35
CNG used in automobiles to check pollution, mainly consists of
CH
4
CO
2
N
2
H
2
Q.36
The liquid waste from kitchens and baths, of residences is known as :
Domestic sewage
Storm water
Sullage
Refuse
Q.37
The smog is essentially caused by the presence of
O
3
and N
2
O
2
and N
2
Oxides of N and S
O
2
and O
3
Q.38
The depletion in Ozone layer is caused by ________ .
Nitrous oxide
Carbon dioxide
Chlorofluorocarbons
Methane
Q.39
Higher concentration of nitrogen dioxide in atmosphere air causes
Cancer
Bronchitis
Asphyxiation
Corrosion
Q.40
Which of the following in automobile exhaust can cause cancer?
Oxides of nitrogen
Carbon monoxide
Lead
Polyclinic hydrocarbons
Q.41
The acid rain destroys vegetations because it contains
Nitric acid
Ozone
Carbon monoxide
Sulphuric acid
Q.42
Oxide of sulphur present in the atmosphere are washed down by rains to cause :
Depletion of fossil fuel reserves
Eutrophication in lakes
Lowering of pH of soil
Industrial smog formation
Q.43
The pH of human blood is between
6.5-7
7.5-8
8-9
4.5-5
Q.44
Brass is a solution of molten copper in
Solid zinc
Molten zinc
Gaseous zinc
Molten tin
Q.45
The nucleus of an atom consists of
Protons and Neutrons
Neutrons and Electrons
Electrons only
None of the above
Q.46
All isotopes of the same element have ______________
Different atomic numbers and different atomic mass
Different atomic numbers and the same atomic mass
The same atomic number but different atomic masses
The same atomic number and the atomic mass
Q.47
What are the major pollutants of cigarette smoke?
Carbon monoxide and dioxin
Carbon monoxide and nicotine
Carbon monoxide and benzene
Dioxin and benzene
Q.48
Most poisonous pollutant in water is
Zinc
Phosphate
Arsenic
Detergent
Q.49
Which of the following is the maximum number of electrons that can be present in M-shell?
2
8
18
32
Q.50
Atoms of different elements have
Same atomic number and same electronic configuration
Different atomic number and same eletronic configu-ration
Different atomic number and different number of valence electrons
Same number of electrons and neutrons
0 h : 0 m : 1 s
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