Question

What is the difference between a strong acid and a weak acid? (2 points)

a. A strong acid has a higher pH than a weak acid.
b. A strong acid is 100% ionized; a weak acid is less than 100% ionized.
c. A strong acid is diprotic or triprotic; a weak acid is monoprotic.
d. A strong acid has a greater concentration of hydroxide ions compared to a weak acid.

Answer 1

Answer: The correct answer is Option b.

Step-by-step explanation:

An acid is defined as the substance which looses hydrogen ions when dissolved in water.

A strong acid is defined as the substance which gets completely dissociated into its ions when dissolved in water. Their percentage ionization is equal to 100 %. For Example:
`HCl,H_2SO_4` etc.. They can be monoprotic, diprotic or tripotic.

A weak acid is defined as the substance which does not get completely dissociated into its ions when dissolved in water. Their percentage ionization is less than 100 %. For Example:
`CH_3COOH,H_3PO_4` etc.. They can be monoprotic, diprotic or tripotic.

Hence, the correct answer is Option b.