Question

$8g{O}_2$ has same number of molecules as that in:

• A. $14gCO$
• B. $7gCO$
• C. $11gC{O}_2$
• D. $22gC{O}_2$

Answer 1

Answer: (B), (C)

The correct options are
B $7gCO$
C $11gC{O}_2$

Moles of $O_2$= $\frac{8}{32}$ =0.25

No. of molecules x no. of moles

0.25 moles of CO${}_2$ or CO will have same no. of molecules.

Out of given options , B and C 0.25 moles of CO and CO${}_2$ respectively.