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11
Inert gases' occurs in the group . . . . . . . .
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Answer & Solution
Answer: Option C
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12
Chlorofluorocarbon are not used in . . . . . . . .
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Answer: Option B
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13
NO2 fumes is . . . . . . . . in colour.
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Answer: Option A
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14
Which element does not belong to group 17?
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Answer & Solution
Answer: Option B
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15
What is Graphene?
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Answer & Solution
Answer: Option A
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16
Carbon monoxide is a poisonous gas the antidote used for this poisoning is
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Answer: Option D
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17
When a piece of zinc metal is placed in hydrochloric acid, a gas is produced.
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Answer & Solution
Answer: Option B
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18
Heavy Water is so called because:
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Answer: Option B
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19
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
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Answer & Solution
Answer: Option D
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20
Which one of the following gases dissolves in water to give acidic solution?
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Answer: Option A
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