M.Sc. Bio-Physics (PU-CET P.G) 2019 Panjab University Entrance Exam With Answers

Practice Mode:
11.

The number of oxygen atoms in 4.4gm of CO2 is,

A: 1.2x10^23
B: 6x10^22
C: 6x10^23
D: 12x10^23

The answer is: A