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Which of the following CANNOT be an empirical formula?

Chemistry
WAEC 2018

Which of the following CANNOT be an empirical formula?

  • A. \(CH\)
  • B. \(CH_{2}\)
  • C. \(P_{2}O_{5}\)
  • D. \(N_{2}O_{4}\)
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Correct Answer: Option D
Explanation

The empirical formula is always in the ratio of the smallest positive integer, hence, \(N_{2}O_{4}\) has an empirical formula \(NO_{2}\).

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