Which of the following correctly lists the substances from highest to lowest pH?

Question

?

A.
lemon juice, distilled water, milk of magnesia

B.
distilled water, milk of magnesia, lemon juice

C.
lemon juice, milk of magnesia, distilled water

D.
milk of magnesia, distilled water, lemon juice

Answer 1

To determine the correct order of substances from highest to lowest pH, it's helpful to know the typical pH values for each:

1. Lemon juice: Typically has a pH of around 2 to 3 (acidic).
2. Milk of magnesia: Typically has a pH around 10 to 11 (basic).
3. Distilled water: Typically has a neutral pH of around 7.

Based on these typical pH values, the order from highest to lowest pH is:

1. Milk of magnesia (highest pH)
2. Distilled water (neutral pH)
3. Lemon juice (lowest pH)

Thus, the correct answer is:

D. milk of magnesia, distilled water, lemon juice.