Question

2gm of lead nitrate powder is taken in a boilong tube.the boiling tube is heated over a flame
a) state the colour of fumes evolved and the residue left.
b) Name the types of chemical reaction taken place writing it's balanced chemical equation

Answer 1

$Hey MATE!$

PbNO3 ===> PbO + NO2 +O2

1) Brown coloured gas fumes are generated due to release of NO2 gas.

2) It is a decomposition reaction as lead nitrate decomposes to lead oxide, nitroge dioxide and oxygen gas.

Hope it helps

Hakuna Matata :))