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Chemistry Medium NTS Uploaded: 04 Sep 2026

What is the term for the smallest whole number ratio of atoms in a compound?

  • A Empirical formula
  • B Ionic formula
  • C Molecular formula
  • D Structural formula
Correct Answer: Option A — Empirical formula
Explanation:
The empirical formula expresses the simplest whole-number ratio of atoms of each element present in a compound, which may or may not be identical to the actual molecular formula.
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