Question

19. When a compound of lead is heated, brown coloured fumes evolve from it.
(i) Name the compound.
(ii) Write the balanced chemical equation.
(iii) Write the chemical name of brown coloured fumes.
(iv) Name the type of reaction.
(v) Is this reaction an exothermic or endothermic?

Answer 1

(i) lead nitrate
(ii) Pb(NO3)2 -> PbO + NO2 + O2
(iii) nitrogen dioxide
(iv) decomposition reaction
(v) endothermic