Question

A white salt upon heating decomposes to give a brown coloured gas .
i) Name the salt and the gas produced .
ii) Write the equation involved .

Answer 1

Answer:

The chemical name of white salt is Lead nitrate Pb(NO3)2. The salt on heating produces brown fumes. This implies that the salt contains nitrate ion. This salt can be any nitrate but if the residue left after heating is yellow in colour implies that the salt is lead nitrate.