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Which of the following pairs cannot be represented with a chemical formula?

Which of the following pairs cannot be represented with a chemical formula?
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Air and bronze
  • B Bronze and sodium chloride
  • C Copper and sodium chloride
  • D Caustic soda and washing soda
Correct Answer: Option A
Explanation:

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