Question

Which of the following characteristics is common to both acids and bases? a. They produce ions when dissolved in water. b. They absorb oxygen ions when dissolved in water. c. They increase hydrogen ions when dissolved in a solution. d. They increase the hydroxide ions when dissolved in a solution.

Answer 1

Answer: a. They produce ions when dissolved in water.

Explanation:

Acid : It is a substance that has ability of donating proton or hydrogen ion, $H^+$ when dissolved in water.

Acids are sour in taste.

The texture of an acid solution is sticky.

It changes the color of the litmus paper to red.

Base : It is a substance that has ability of donating hydroxide ion, $OH^-$ when dissolved in water.

Base are bitter in taste.

The texture of an base solution is slippery.

It changes the color of the litmus paper to blue.

Thus both acids and bases produce ions when dissolved in water.

Answer 2

a. They produce ions when dissolved in water.

acids in water

HA + H2O --> H3O+  + A-

HA  --> H+  + A-

bases

B + H2O -->  OH -  +  BH+