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The melting point of picolinic acid is 5°C. What is the melting point of picolinic acid on the Fahrenheit scale?

  • A. 107.8°F
  • B. 245.7°F
  • C. 168.5°F
  • D. 409.5°F
Correct Answer: A

Rationale: The correct answer is A: 107.8°F. To convert Celsius to Fahrenheit, you use the formula °F = (°C x 9/5) + 32. Substituting 5°C into the formula gives (5 x 9/5) + 32 = 41 + 32 = 73°F. Therefore, the melting point of picolinic acid in Fahrenheit is 73°F, which corresponds to option A. Option B, C, and D are incorrect because they do not match the calculated Fahrenheit temperature.