How many oxygen atoms are present in a molecule of potassium permanganate?
Answer & explanation
Correct answer: option 2
The correct answer is option 2. Four.
The chemical formula for potassium permanganate (\( \text{KMnO}_4 \)) provides information about the types and number of atoms in a single molecule of the compound.
In \( \text{KMnO}_4 \):
\( \text{K} \) represents potassium.
\( \text{Mn} \) represents manganese.
\( \text{O}_4 \) represents four oxygen atoms.
So, within one molecule of potassium permanganate, there are four oxygen atoms. The compound is a powerful oxidizing agent and is commonly used in various chemical reactions, including titrations and water treatment processes.