New Jersey Barber and Hairstyling Practice Exam

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Prepare for the New Jersey Barber and Hairstyling Exam with a comprehensive quiz filled with multiple-choice questions and detailed explanations. Gain the confidence you need to excel in the exam and take your first step towards a successful career in hairstyling!

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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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