Question

(3) 24
(4) 16
Find number of oxygen atoms present in 100 mg
of CaCO3
(Atomic mass of Ca = 40 u, C = 12 u, O = 16 u)
(1) 6.02 x 1023
(2) 6.02 x 1020
(3) 1.806 x 1021
(4) 1.204 x 1020​

Answer 1

2 . is the answer .........

Answer 2

Answer:

2 option is right answer