Question

Take about 2g of lead nitrate
power in a boiling tube. Hold the
boiling tube with a pair of tongs and
heat it over a flame. What do you
observe? *​

Answer 1

Answer:

Brown fumes are evolved.

Explanation:

When lead nitrate is heated it decomposes to form :

a. Lead oxide

b. Nitrogen dioxide

c. Oxygen

In equation we can write it as :

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

This type of chemical reactions are called thermal decomposition reaction.