Question

Aluminum oxide reacts with sulfuric acid to form:

• A. Aluminum sulfate and water
• B. Aluminum sulfate and hydrogen
• C. Aluminum sulfate and oxygen
• D. Aluminum sulfate and sulfate dioxide.

Answer 1

The correct option is A

Aluminum sulfate and water

The explanation for the correct option

(A) Aluminum sulfate and water

Aluminum hydroxide$\left(\mathrm{Al}{\left(\mathrm{OH}\right)}_3\right)$ and sulfuric acid$\left({\mathrm{H}}_2{\mathrm{SO}}_4\right)$ reacts to form two products aluminum sulfate$\left({\mathrm{Al}}_2{\left({\mathrm{SO}}_4\right)}_3\right)$ and water$\left({\mathrm{H}}_2\mathrm{O}\right)$.

$2\mathrm{Al}{\left(\mathrm{OH}\right)}_3\left(\mathrm{aq}\right)+3{\mathrm{H}}_2{\mathrm{SO}}_4\left(\mathrm{aq}\right)\to {\mathrm{Al}}_2{\left({\mathrm{SO}}_4\right)}_3\left(\mathrm{aq}\right)+6{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)$

Therefore, (A) is the correct option.