Laughing gas has chemical composition of following two elements:

(A) Nitrogen + Hydrogen
(B) Nitrogen + Carbon
(C) Nitrogen + Oxygen
(D) Oxygen + Carbon

Answer: (C) Nitrogen + Oxygen

Q. What is the chemical name of laughing gas?
(A) Carbon dioxide
(B) Nitrous oxide
(C) Nitric oxide
(D) None of these

Answer: (B) Nitrous oxide

Q. What is the chemical formula of laughing gas?
(A) N₃O
(B) NO₂
(C) N₂O₃
(D) N₂O

Answer: (D) N₂O