`2N HCI` solution will have the same molar concentration as a

Options

A. `0.5 N-H_(2)SO_(4)`
B. `1.0N-H_(2)SO_(4)`
C. `2N-H_(2)SO_(4)`
D. `4N-H_(2)SO_(4)`

Answer

D

Explanation

First 300 ml of 0.1 N HCl neutralises the entire amount of NaoH and 1/2 of `Na_(2)CO_(3)`.
As given, 25 ml of 0.2 N HCl neutralises remaining 1/2 of `Na_(2)CO_(3)`.
So number of milliequivalents of HCl=no. of
Milliequivalents of NaOH
`250xx0.1" N HCl"=250xx0.1" N NaOH"`
Which is equal to 1g of NaOH.