Question

Name the gas produced in each of the following case

(i) Action of dilute nitric acid on Cu turnings

(ii) Catalytic oxidation of ammonia by Pt

(iii) Mg3N2 is treated with warm water

(iv) Methane reacts with chlorine in diffused sunlight

(v) Cu turnings are heated with concentrated sulphuric acid​

Answer 1

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Reaction of copper with cold dilute nitric acid is:

copper

3Cu(s)

+

nitric acid

8HNO

3

(aq)

→

copper nitrate

3Cu(NO

3

)

2

(aq)

water

4H

2

O(l)

+

nitric oxide

2NO(g)

Gas evolved is nitric oxide.

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