Question

2g of lead nitrate powder is taken in a boiling tube. The boiling tube is heated over a flame. Now answer the following:
i. State the color of the fumes evolved and the residue left.
ii. Name the type of chemical reaction that has taken place stating its balanced chemical equation.

Answer 1

i. Brown coloured fumes of NO2 gas are evolved and colour of the residue left behind is brown.
ii. It is a decomposition reaction. Chemical equation: