Q. Which of the following contains maximum number of molecules?

A) $100\ cc\ of\ {CO}_{2}\ at\ STP$
B) $150\ cc\ of\ N_{2}at\ STP$
C) $50\ cc\ of\ {SO}_{2}\ at\ STP\$
D) $200\ cc\ of\ {NH}_{3}at\ STP$
Explanation

(d)
200 cc of $NH_{3}\$ at STP contains maximum number of molecules because $NH_{3}$ compound has lowest molecular weight and highest volume than other compounds.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.