Question

18.
Answer the following questions, when one of the salts of lead, when heated, produces a
yellow residue and brown fumes.
(a) Name the lead salt
(b) Name the brown fumes
(c) Write a chemical equation of the reaction involved
(d) What type of reaction it is???​

Answer 1

The answers of the given questions are as follows-

• The name of the lead salt is lead nitrate or Pb(NO3)2.
• The brown fumes is actually the nitrogen dioxide gas.
• The chemical equation of this chemical reaction, will be

2Pb(NO3)2 ----> 2PbO + 4NO2 + O2

• In this chemical reaction, the single chemical compound lead nitrate is broken down into simpler and multiple chemical compounds, elements. So, this chemical reaction is obviously a decomposition chemical reaction.