Atoms and Molecules (Quiz)

Attention Class IX standard Aspirants! Just Exam provide a platform to all students who want to make practice for various subject online.
Interested students may contact us at for full course access.

Dear User, Kindly login/register to view answer & explanation of each question.
Click here to Login/Sign Up.

Q.1 Which of the following has the maximum number of atoms?
  18 g of H2O
  18 g of O2
  18 g of CO2
  18 g of CH4