Multiple choice

Which of the following is not a correct formula of the given compound?

  1. Acetic acid - $CH _3$ COOH
  2. Slaked lime - $Ca\left(OH\right)_2$
  3. Aluminium oxide - $AlO _3$
  4. Potassium carbonate - $K _2CO _3$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The chemical formula of aluminium oxide is $Al _2O _3.$

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