Photochemical smog is due to the presence of
Options
(a) oxides of sulphur (b) oxides of nitrogen (c) chlorofluorocarbon (d) lead
Correct Answer:
oxides of nitrogen
Explanation:
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The greenhouse gas is
Options
(a) CO₂ (b) SO₂ (c) N₂ (d) H₂S
Correct Answer:
CO₂
Explanation:
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Which one of the following metals forms superoxide?
Options
(a) Ca (b) Zn (c) Ti (d) K
Correct Answer:
K
Explanation:
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In the Dumas method of estimation of nitrogen,the nitrogen in the organic compound is finally converted into
Options
(a) NO₂ (b) N₂ (c) NH₃ (d) (NH₄)₂SO₄
Correct Answer:
N₂
Explanation:
No explanation available. […]
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