Question

In this set of chemical reactions, which is a singlereplacement reaction?Pb(NO3)2(aq) + 2NaCl(aq) → PbCl2(s) + 2NaNO3(aq)CuSO4(aq) + BaCl2(aq) → BaSO4(s) + CuCl2(aq)K2504(aq) + BaCl2(aq) → BaSO4(s) + 2Cl(aq)AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g)

Answer 1

`\begin{gathered} \text{ Zn}_((s))+\text{ H}_2SO_(4(aq))\rightarrow\text{ ZnSO}_(4(aq))\text{ + H}_(2(g)) \\ \text{ option D} \end{gathered}`

Step-by-step explanation:

A single replacement reaction is also called a single displacement reaction.

A single replacement reaction is a type of reaction where one element is substituted for another element in a compound during a chemical reaction.

Below reaction is an example of a single replacement reaction

`\text{ A + BC }\rightarrow\text{ B + AC}`

From the given options, you will see that the reaction between Zn and H2SO4 is a single replacement reaction

Zn will displace H2 because it is more reactive than hydrogen

Hence, the correct option is D