Which among the below mentioned is used to remove the impurity hydrogen sulphide from hydrogen gas:-
Silver nitrate
Potassium hydroxide
Lead nitrate
Calcium chloride
Lead nitrate
Lead nitrate solution Pb(NO3)2 is used to remove hydrogen sulphide H2S, which is a gaseous impurity present in hydrogen gas.
Pb(NO3)2+H2S →PbS+2HNO3