Chemistry
Choose the answer from the list which fits the description.
[O2, NO2, H2S, C2H2, KBr]
(a) A colourless gas liberated on decomposition of nitric acid.
(b) Water is added to calcium carbide.
(c) Dilute hydrochloric acid is added to zinc sulphide.
Nitric Acid
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Answer
(a) O2
(b) C2H2
(c) H2S
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