Question

The statement given below is incorrect. Write the correct statement.

Lead nitrate crystals on strong heating decompose to form lead dioxide, nitrogen dioxide, and oxygen gas.

Answer 1

• The heating of Lead nitrate ($\mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_2$) results in the formation of Lead monoxide ($\mathrm{PbO}$) as yellow color solid.
• It also liberates Nitrogen dioxide (${\mathrm{NO}}_2$) gas which would be reddish-brown in color, and a colorless gas called Oxygen(${\mathrm{O}}_2$) gas.

2Pb(NO₃)₂ (s) $\stackrel{\mathrm{heat}}{\to }$2PbO(s) + 4NO₂ (g) + O₂ (g)

Correct statement: Lead nitrate crystals on strong heating decompose to form Lead monoxide, Nitrogen dioxide, and Oxygen gas.