An unknown chlorohydrocarbon has 3.55% of chlorine. If each molecule of the hydrocarbon has one chlorine atom only, chlorine atoms present in 1 g of chlorohydrocarbon are :
(Atomic wt. of Cl = 35.5 u,
Avogardo constant `=6.023xx10^(23) "mol"^(-1)`)

Options

A. `6.023xx10^(23)`
B. `6.023xx10^(9)`
C. `6.023xx10^(20)`
D. `6.023xx10^(21)`

Answer

C