Question

why lead nitrate powder is heated in a boiling tube coloured fumes of gas X is produced along with other products. write the balanced chemical equation for reaction involved in this type and also identify X and its colour?
please answer with solution

Answer 1

2Pb(NO3)2----->2 PbO+4NO2+O2

Pb(NO3)2- colorless(white)

PbO - yellow

NO2 - reddish brown

I hope this helps ( ╹▽╹ )

Answer 2

The coloured gas X formed by heating lead nitrate powder is Nitrogen Dioxide (NO2) and its colour is reddish-brown.

- When we heat lead nitrate powder, then it undergoes thermal decomposition.

- During this decomposition, reddish-brown fumes of nitrogen dioxide are formed along with powder of lead oxide and oxygen gas.

- The balanced chemical reaction of the thermal decomposition of lead nitrate is given as follows:

2 Pb(NO3)2 (s) → 2 PbO (s) + 4NO2 (g) + O2  (g)