The number of gram molecules of oxygen in `6.02 xx 10^24` CO molecules is :

Options

A. 10 gram molecules
B. 5 gram molecules
C. 1 gram molecule
D. 0.5 gram molecule

Answer

B

Explanation

No. of atoms of oxygen in `6.02 xx 10^24` CO molecules ` = 6.02 xx 10^24` (each CO contains 1 oxygen atom)
No. of oxygen molecules
` = (6.02 xx 10^24)/(2) = 3.01 xx 10^24`
Gram molecules of oxygen
` = (3.01 xx 10^24)/(6.02 xx 10^23) = 5`