Question

Milk of magnesia is a slippery, bitter-tasting white substance that is commonly used as a laxative. If the pH of milk of magnesia is between 10 and 11, it can best be described as a A. strong acid. B. moderate base. C. neutral compound. D. moderate acid.

Answer 1

B moderate base

since the PH is around 11 which is higher than the neutral PH of 7, it is a moderate base (the higher the PH, the more basic it is. The lower the PH, the more acidic it is)

Answer 2

Answer: Option (B) is the correct answer.

Step-by-step explanation:

It is known that species that dissociate in water to give hydroxide ions is known as base.

Chemical formula of milk of magnesia is
`Mg(OH)_(2)` and it dissociates to give hydroxide ions when dissolved in water.

Some properties of bases are that they taste bitter, they have slippery texture, and show a pH greater than 7.

When pH of a substance ranges from 12-14 then it is known as a strong base.

And when pH is less that 7 then the substance is known as acidic in nature.

Thus, we can conclude that if the pH of milk of magnesia is between 10 and 11, it can best be described as a moderate base.