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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_(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 " NaNO_(2) lt 0.01 " M " H_(2)S lt 0.01 " M " H_(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

`0.01 " M " H_(2)S lt 0.01 " M " NaNO_(2) lt 0.01 " M " NaCl lt 0.01 " M " H_(2)SO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
C
`NaNO_(2)` is a salt of strong base and weak acid so its pH will be maximum. NaCl is neutral.`H_(2)SO_(4)`is most acidic.
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