The correct order of increasing `[H_(3)O^(o+)]` in the following aqueous solution is

Options

A. 0.01 M `H_(2) S lt` 0.01 M `H_(2)SO_(4) lt` 0.01 M NaCl `lt` 0.01 M `NaNO_(2)`
B. 0.01 M NaCl `lt` 0.01 M `Na NO_(2) lt` 0.01 M `H_(2)S lt` 0.01 `MH_(2)SO_(4)`
C. 0.01 M `NaNO_(2) lt` 0.01 M NaCl `lt` 0.01 M `H_(2)S lt ` 0.01 M `H_(2)SO_(4)`
D. None

Answer

C

Explanation

This is because the acidic nature of aqueous solution increases in the order
`NaNO_(2) ltNaCl lt H_(2)S ltH_(2)SO_(4)`