Multiple choice

Which of the following elements is the element present in alkaloid and urea?

  1. silicon

  2. nitrogen

  3. calcium

  4. argon

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

Alkaloids are a group of naturally occurring chemical compounds that contain mostly basic nitrogen atoms. Urea serves an important role in the metabolism of nitrogen-containing compounds by animals, and is the main nitrogen-containing substance in the urine of mammals.