Question

What is the chemical formula of Aluminium hydroxide?

• A. $\mathrm{Al}{\left(\mathrm{OH}\right)}_2$
• B. $\mathrm{Al}{\left(\mathrm{OH}\right)}_3$
• C. ${\mathrm{Al}}_2{\left(\mathrm{OH}\right)}_3$
• D. ${\mathrm{Al}}_2\left(\mathrm{OH}\right)$

Answer 1

The correct option is B

$\mathrm{Al}{\left(\mathrm{OH}\right)}_3$

Explanation for correct option

(B)$\mathrm{Al}{\left(\mathrm{OH}\right)}_3$

Chemical formula

• "The chemical formula of a compound is a symbolic representation of its composition."
• The chemical formula of Aluminium hydroxide is $\mathrm{Al}{\left(\mathrm{OH}\right)}_3$.

Explanation for incorrect options

$\mathrm{Al}{\left(\mathrm{OH}\right)}_3$ is the correct formula for Aluminium hydroxide. So, options (A), (C), and (D) are incorrect.

Hence, option (B) that is $\mathrm{Al}{\left(\mathrm{OH}\right)}_3$ is correct.