What happens when dilute sulphuric acid is poured into a copper plate?
Answer & explanation
Correct answer: option 2
The correct answer is option 2. Copper sulphate is formed.
When dilute sulfuric acid is poured onto a copper plate, copper sulfate is formed. The chemical reaction can be represented as follows:
\[ \text{Cu(s) + H}_2\text{SO}_4(aq) \rightarrow \text{CuSO}_4(aq) + \text{H}_2\text{(g)} \]
This reaction involves the displacement of hydrogen from sulfuric acid by copper, resulting in the formation of copper sulfate (\(\text{CuSO}_4\)) and the evolution of hydrogen gas (\(\text{H}_2\)).