Question

Some substances are acidic while others are basic. A scale called the pH scale is used to measure the extent of acidity. What will happen to the pH of the solution if a little ACID is added to a beaker of WATER (original pH = 7)?
A. It will become a little less than 7.
B. It will remain 7.
C. It will become a little more than 7.
D. It will become 0.

Answer 1

Answer:

A. it will become less than 7

Explanation:

acids are substance which have a low pH due to the liberation of H⁺ ions so when added to water of neutral pH there will be an increase in H⁺ ions due to which pH decreases.