Q.

What happens during the detection of NO2 gas with Ferrous sulphate?

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a

Blue color is formed

b

Black Brown compound is formed

c

Green color compound is obtained

d

Suffocating odor is obtained

answer is B.

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Detailed Solution

3Fe SO4+NO2+H2SO4→Fe2SO43+FeSO4 . NO+H2OBlack Brown
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What happens during the detection of NO2 gas with Ferrous sulphate?