The correct order of acid strength is -

Options

A. `CI_(2)O_(7)gtSO_(3)P_(4)O_(10)`
B. `CO_(2)gtN_(2)O_(5)gtSO_(3)`
C. `Na_(2)OgtMgOgtAI_(2)O_(3)`
D. `K_(2)OgtCaOgtMgO`

Answer

A

Explanation

`overset(+7)CI_(2)O_(7) gt overset(+6)SO_(3) gt overset(+5)P_(4)O_(10)`
Higher the oxidation state of the element, more is the acidic strength. Hence answer (a) is correct, i.e. the correct order in (b) is
`overset(+6)SO_(3) gt overset(+5)N_(2)O_(5) gt overset(+4)CO_(2)`
The correct order in (c ) is
`overset(+3)AI_(2)O_(3) gt overset(+2)MgO gt overset(+1)Na_(2)O` (Reverse of basic character)
The correct order in (d) is
`overset(+3)MgO gt overset(+2)CaO gt overset(+1)K_(2)O` (Recerse of basic character)
Down the group `(darr)` basic character increases in in both 1st and 2nd group. But basic characrter of 1st group is greater than 2nd group. So acidic character order is reversed.