Multiple choice

Carbohydrates are composed of

  1. Carbon, Hydrogen and Nitrogen

  2. Nitrogen, Carbon and Oxygen

  3. Oxygen, Hydrogen and Nitrogen

  4. Carbon, Hydrogen and Oxygen

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A carbohydrate is an organic compound with the empirical formula Cm(H2O)n (where m could be different from n); that is, consists only of carbon, hydrogen, and oxygen, with a hydrogen: oxygen atom ratio of 2 : 1.