JAMB - Chemistry (1992 - No. 47)
In the experiment above. Z can be
a solution of sodium dioxonitrate (lll) and ammonium chloride
a solution of lead trioxnitrate (V)
a solution of sodium trioxonitrate (V) and ammonium chloride
concentrated tetraoxosulphate (VI) acid and sodium trioxonitrate (V)
Explication
Nitrogen(I) oxide(laughing gas) can be prepared in the laboratory by the action of heat on a mixture of sodium trioxonitrate (V) and ammonium chloride, this colourless gas is collected over water.