Question

\(2HCl + Zn\rightarrow\)

• A. \(ZnCl_2\)
• B. \(ZnCl_2 + Cl_2\)
• C. \(H_2\)
• D. \(ZnCl_2 + H_2\)

Answer 1

The Correct Option is D

The reaction presented is between hydrochloric acid (\(HCl\)) and zinc (\(Zn\)):

\(2HCl + Zn \rightarrow\)

When a metal reacts with an acid, it typically results in the formation of a salt and the liberation of hydrogen gas.

In this specific case, zinc reacts with hydrochloric acid to form zinc chloride (\(ZnCl_2\)) and hydrogen gas (\(H_2\)). The balanced chemical equation is:

\(2HCl + Zn \rightarrow ZnCl_2 + H_2\)

 

This represents a single displacement reaction where zinc, a more reactive metal, displaces hydrogen ions in hydrochloric acid, forming zinc chloride and releasing hydrogen gas.

The correct answer is:

\(ZnCl_2 + H_2\)

 

Answer 2

When dilute hydrochloric acid (HCl) reacts with zinc (Zn), a displacement reaction takes place.

Zinc displaces hydrogen from hydrochloric acid to form zinc chloride and hydrogen gas.

The balanced chemical equation is:

\[ Zn + 2HCl \rightarrow ZnCl_2 + H_2 \]

Correct Answer: ZnCl₂ + H₂