Q. 84.4( 5 Votes )
Which gas is rele A. H2
B. O2
C. CI2
D. CO2
Answer :
When bleaching powder is kept open in air, it reacts with CO2 which is present in air to form calcium carbonate and chlorine gas. The reaction takes place:
Thus, chlorine gas is released when bleaching powder is kept in open air.
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