Question

27. (i) Write two observations when lead nitrate is heated in a test tube.

(ii) Name the type of reaction.

(iii) Write a balanced chemical equation to represent the above reaction.​

Answer 1

Explanation:

i) When Lead nitrate is heated it produces a yellow precipitate of Lead monoxide .

ii) It also produces a brownish colored fume (gas) which is Nitrogen dioxide along with oxygen.

The five basic types of chemical reactions are combination, decomposition, single-replacement, double-replacement, and combustion. Analyzing the reactants and products of a given reaction will allow you to place it into one of these categories.

iii) This is Decomposition type of chemical reaction. ... 2Pb(NO3)2 = 2PbO + 4NO2 + O2.