Washington Barber License Practice Exam

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Prepare for the Washington Barber License Exam with this essential quiz. Challenge yourself with multiple-choice questions designed to enhance your knowledge and readiness for the licensing test. Get the confidence you need to excel in your barber career!

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Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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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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