Passage of Ammonia gas through copper sulphate forms pale blue precipitate.What is the precipitate?
A
It decomposes giving reddish brown gas nitric oxide gas which imparts the colour
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B
It decomposes giving reddish brown gas nitrous oxide gas which imparts the colour
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C
It decomposes giving reddish brown gas nitrogen dioxide gas which imparts the colour
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D
It loses its acidic action turning yellowish brown
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Solution
The correct option is B
It decomposes giving reddish brown gas nitrous oxide gas which imparts the colour
Passage of Ammonia gas through copper sulphate solution forms pale blue precipitate of copper hydroxide which turns into a deep blue coloured solution on passage of excess ammonia.