Multiple choice

Acetic acid is ________.

  1. Not ionized

  2. Slightly ionized

  3. Completely ionized

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Acetic acid is slightly ionized in aqueous solution because it is a weak acid. Only about 1% of acetic acid molecules dissociate into H+ and CH3COO- ions in water. Strong acids are completely ionized, while non-ionized substances do not dissociate at all.

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