Consider the following statements
A. Only 1
B. Only 2
C. Both 1 and 2
D. Neither 1 nor 2
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Which of the following is the electronic configuration of inert gas in chloride ion Cl- ?
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Which of the following statements is not true?
A. Buckminster fullerene is an allotropic of carbon
B. Diamond is a good conductor of electricity
C. Graphite is a good conductor of electricity
D. Each carbon atom in Graphite attached to other three carbon atoms
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Which of the following inert gas is placed in period 5?
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'Sulphur' is derived from which language?
A. Latin
B. Sanskrit
C. Greek
D. Mandarin
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Which of these electronic configurations is nonmetallic?
A. 2, 8, 3
B. 2, 8, 4
C. 2, 8, 5
D. 2, 8, 1
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When CO2 is passed through an aqueous solution of bleaching powder, the gas evolved is
A. chlorine
B. oxygen
C. ozone
D. chlorine dioxide
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What is the chemical symbol of sulphur?
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Which of the following element is the second most abundant element on the earth's crust and is present in nature. It is a very important component of ceramics, glass and cement?
A. Germanium
B. Silicon
C. Tin
D. Lead
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What is the meaning of the chemical symbol 'P'?
A. Phosphorus
B. Potassium
C. Fludium
D. Polyamonium
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Inert gases' occurs in the group . . . . . . . .
A. I A
B. III A
C. VIII A
D. IV A
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Chlorofluorocarbon are not used in . . . . . . . .
A. Refrigerator
B. Mixer and grinder
C. Air conditioner
D. Packing material
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NO2 fumes is . . . . . . . . in colour.
A. brown
B. yellow
C. light yellow
D. red
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Which element does not belong to group 17?
A. Chlorine
B. Argon
C. Fluorine
D. Bromine
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What is Graphene?
A. Carbon allotrope
B. A popular graphics software
C. A mythical animal
D. An infected wound
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Carbon monoxide is a poisonous gas the antidote used for this poisoning is
A. pure oxygen
B. carbonic acid
C. carborundum
D. carbogen
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When a piece of zinc metal is placed in hydrochloric acid, a gas is produced.
A. nitrogen
B. hydrogen
C. carbon dioxide
D. oxygen
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Heavy Water is so called because:
A. Its density is three times that of normal water
B. It uses Deuterium, a heavier isotope of hydrogen, rather than Protium
C. It is used by the heavy industries such as steel, chemicals etc
D. It is used in nuclear reactors
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Match
List-I with
List-II and select the correct answer:
List-I List-II
a. Gobar gas
1. CO + H2
b. Coal gas
2. CO + N2
c. Producer gas
3. CH4
d. Water gas
4. H2 + CH4 + CO
A. a-4, b-3, c-2, d-1
B. a-2, b-4, c-3, d-1
C. a-4, b-2, c-1, d-3
D. a-3, b-4, c-2, d-1
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Which one of the following gases dissolves in water to give acidic solution?
A. Carbon dioxide
B. Oxygen
C. Nitrogen
D. Hydrogen
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