Question

A white coloured substance on heating gives brown fumes and yellow residue.
Identify white coloured substance, yellow residue and brown fumes produced.
write reaction also. ​

Answer 1

Explanation:

The given white salt is lead nitrate Pb(NO3)2. It decomposes to give brown fumes(NO2 ) and yellow residue(PbO). The reaction can be given as follows:

2Pb(NO3)2→2PbO+4NO2+O2