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The correct order of increasing [H(3)O^(...

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

A

`0.01 M H_2S lt 0.01 MH_2 SO_4 lt 0.01 M NaCl lt 0.01 M NaNO_2 `

B

`0.01 M NaCl lt 0.01 M NaNO_2 lt 0.01 M H_2S lt 0.01 MH_2SO_4`

C

`0.01 M NaNO_2 lt 0.01 M NaCl lt 0.01 M H_2S lt 0.01 M H_2SO_4 `

D

`0.01 M H_2S lt 0.01 M NaNO_2 lt 0.01 M NaCl lt 0.01 M H_2SO_4 `

Text Solution

Verified by Experts

The correct Answer is:
C
`H_(2)SO_(4)` is strong acid having pH `lt 7 , NaNO_(2)` on hydrolysis gives alkaline solution of pH `lt` 7 .
NaCl is neutral and `H_(2)S` is weak acid .
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