Which of the following contains greatest number of oxygen atoms ? .

Options

A. 1g of O
B. 1g of O_(2)
C. g of `O_(3)`
D. all have the same number of atoms

Answer

D

Explanation

No of oxygen atom = mole `xx N_(A) xx "atomicity"`
(A) `= (1)/(16) xx N_(A) xx 1 = (N_(A))/(16)`
(B) `= (1)/(32) xx N_(A) xx 2 = (N_(A))/(16)`
(C) `= (1)/(48) xx N_(A) xx 3 = (N_(A))/(16)`
all are same .