Question

Copper hydroxide is an alkali.

• A. True
• B. False

Answer 1

The correct option is B False

Step 1: An alkali is a substance that when dissolved in water releases only hydroxide ion(s) $\left({\mathrm{OH}}^{-}\right)$

Step 2: Example:

Sodium hydroxide $\left(\mathrm{NaOH}\right)$

Explanation:

Here, Sodium hydroxide$\left(\mathrm{NaOH}\right)$ is an alkali as it is soluble in water, but Copper hydroxide$\left(\mathrm{Cu}{\left(\mathrm{OH}\right)}_2\right)$ is not an alkali as it is not soluble in water. So it shows that all alkalis are bases, but all bases are not alkalis.

Correct statement: Copper hydroxide is not an alkali.

Therefore, the given statement is false.