Q. 4 G4.4( 43 Votes )

Answer the follow

Answer :

(a) When sulphur dioxide reacts with water then the product produced is sulphurous acid. Sulphur dioxide is present in the atmosphere and when rain occurs, it reacts with water and become sulphurous acid.


SO2 + H2O H2SO3


(b) When potassium oxide reacts with water then it produces potassium hydroxide.


K2O + H2O 2KOH


(c) When carbon dioxide reacts with water it produces carbonic acid.


CO2 + H2O H2CO3


(d) When calcium oxide reacts with water it produces calcium hydroxide.


CaO + H2O Ca(OH)2


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