s-Block ElementsHard
Question
Which salt on heating does not give brown coloured gas ?
Options
A.LiNO3
B.KNO3
C.Pb(NO3)2
D.AgNO3
Solution
(A) 2LiNO3 
Li2O + 2NO2 ↑ (brown) + 
O2 ↑
(B) KNO3
KNO2 + O2 ↑
(C) Pb(NO3)2
PbO + 2NO2 ↑(brown) + 
O2 ↑
(D) 2AgNO3
2Ag + 2NO2 ↑ (brown) + O2 ↑
Li2O + 2NO2 ↑ (brown) + O2 ↑(B) KNO3
KNO2 + O2 ↑(C) Pb(NO3)2
PbO + 2NO2 ↑(brown) + O2 ↑(D) 2AgNO3
2Ag + 2NO2 ↑ (brown) + O2 ↑Create a free account to view solution
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