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(A) Let us analyze the reactions: $1$. $PbO + H_2O_2 \rightarrow PbO_2 + H_2O$. No gas is produced. $2$. $2KMnO_4 + 3H_2SO_4 + 5H_2O_2 \rightarrow K_2

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$PbO + H_2O_2$

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(A) Let us analyze the reactions: $1$. $PbO + H_2O_2 \rightarrow PbO_2 + H_2O$. No gas is produced. $2$. $2KMnO_4 + 3H_2SO_4 + 5H_2O_2 \rightarrow K_2SO_4 + 2MnSO_4 + 8H_2O + 5O_2(g)$. $O_2$ gas is produced. $3$. $PbS + 4H_2O_2 \rightarrow PbSO_4 + 4H_2O$. No gas is produced. $4$. $Cl_2 + H_2O_2 \rightarrow 2HCl + O_2(g)$. $O_2$ gas is produced. Note: In the context of standard chemistry questions of this type,$PbO + H_2O_2$ is the classic example where $H_2O_2$ acts as an oxidizing agent without evolving gas. However,$PbS + 4H_2O_2$ also produces no gas. Given the options,$PbO + H_2O_2$ is the most standard answer.

During which of the following reactions will a gaseous product $NOT$ be produced?

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