Note AcademyNote Academy
Start

Chemistry · May / June 2023 · Paper 12 · Question 11

5070The mole and the Avogadro constant

Which compound contains 45.2% nitrogen by mass? [Ar: C, 12; H, 1; N, 14]

  1. Aethane-1,2-diamine, NH2C2H4NH2
  2. Bhydroxylamine, NH2OH
  3. Cmethanamide, HCONH2
  4. Dmethylamine, CH3NH2

As printed in the paper

Show the answer

Correct answer: D. methylamine, CH3NH2

Sit this whole paper →More on The mole and the Avogadro constant

Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.