Question

A white compound on heating, decomposes to form brown fumes and a yellow residue is left behind. name the compound. Write the chemical equation for the following reaction.

Answer 1

the compound is lead nitrate
ur equation is in the pic
the yellow substance is lead monoxide
and the brown fumes are of nitrogen dioxide

Answer 2

Answer:

The chemical name of white compound is Lead nitrate Pb(NO3)2.

The  compound on heating produces brown fumes. This implies that it contains nitrate ion. This  can be any nitrate but if the residue left after heating is yellow in colour implies that it is lead nitrate.

The type of  reaction is decomposition which is  shown as:

2Pb(NO3)2 → 2PbO + 4NO2 + O2

Explanation: