Arizona Barber Practice Exam

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Prepare for the Arizona Barber Board Exam with our comprehensive practice test. Featuring multiple-choice questions, detailed explanations, and practical tips to enhance your study routine. Get ready to ace your exam!

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Ammonia is a colorless gas composed of which two elements?

  1. Oxygen and Carbon

  2. Hydrogen and Nitrogen

  3. Carbon and Nitrogen

  4. Hydrogen and Oxygen

The correct answer is: Hydrogen and Nitrogen

Ammonia is composed of two elements hydrogen and nitrogen. Oxygen and carbon are not part of the chemical formula and are incorrect choices. Carbon and nitrogen are part of the chemical formula for cyanide, not ammonia. Hydrogen and oxygen make up the compound water, not ammonia. Therefore, the correct answer is B.

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