Question

when brown flames produses.....​

Answer 1

Answer:

to my knowledge when lead nitrate is heated

we get

lead reacts with nitrate radical it forms lead nitrate. Since, the valency of lead is +2 it will need two nitrate radical. Lead nitrate is formed by reacting lead with nitric acid, so by displacement reaction it forms, lead nitrate ,water and nitrogen dioxide

Explanation:

Answer 2

Answer:

option 4 is correct when pbNo3 heated lead and nitrogen di oxide produced and brown fumes is due to nitrogen di oxide