Question

${\mathrm{NH}}_4\mathrm{OH}$ is a weak base because:

• A. It is completely ionized
• B. It is partially ionized
• C. It has a low density
• D. It has a low vapor pressure

Answer 1

The correct option is B

It is partially ionized

The correct option is (B):-

Explanation for the correct answer:

Weak Base:

1. It is actually a base, which upon the dissolution in the water will not dissociate or ionize completely .
2. So, the solution will contain only a small amount or proportion of the Hydroxide ions $\left({\mathrm{OH}}^{-}\right)$.
3. ${\mathrm{NH}}_4\mathrm{OH}$ is actually a weak base as when it is dissolved in the water it will ionize partially or in the small amount.
4. So. there would be the production of only small amount of hydroxide ions $\left({\mathrm{OH}}^{-}\right)$.

Therefore, the correct answer is (B): It is partially ionized