Four species are listed below:(i) \[HC{{O}^{-}}_{3}\] (ii) \[{{H}_{3}}{{O}^{+}}\](iii) \[HS{{O}^{-}}_{4}\] (iv) \[HS{{O}_{3}}F\]Which one of the following is the correct sequence of their acid strength?

Four species are listed below:(i) \[HC{{O}^{-}}_{3}\] �

1.	Four species are listed below:(i) \[HC{{O}^{-}}_{3}\] (ii) \[{{H}_{3}}{{O}^{+}}\](iii) \[HS{{O}^{-}}_{4}\] (iv) \[HS{{O}_{3}}F\]Which one of the following is the correct sequence of their acid strength?
A.	iv <ii <iii <i
B.	ii <iii <i <iv
C.	i <iii <ii <iv
D.	iii <i <iv <ii
Answer» D. iii <i <iv <ii

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Four species are listed below:(i) \[HC{{O}^{-}}_{3}\] (ii) \[{{H}_{3}}{{O}^{+}}\](iii) \[HS{{O}^{-}}_{4}\] (iv) \[HS{{O}_{3}}F\]Which one of the following is the correct sequence of their acid strength?

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