If Avogadro's number is `A_(0) ` the number of sulphur atoms present in 200mL of 1N ` H_(2) SO_(4) ` is

Options

A. `A_(0)//5`
B. `A_(0)//2`
C. `A_(0)//10`
D. `A_(0)`

Answer

C

Explanation

Avogadro’s number = `A_(0)`
Normality ` = n_(t) xx` Molarity
` 1 = 2 xx M`
`M = (1)/(2)` mol `L^(-1)`
Moles of `H_(2)SO_(4) = (1)/(2) xx 0.2 = 0.1` moles
Normality = 1, Volume = 200mL(0.2L)
Moles of hydrogen = 0.2 moles
Moles of sulphur = 0.1 moles
Atoms = 0.1 `A_(0)`