1.

Which of the following is the correct order of acidic strength ?

Answer»

`Cl_(2)O_(7)gtSO_(3)gtP_(4)O_(10)`
`CO_(2)gtN_(2)O_(5)gtSO_(3)`
`Na_(2)OgtMgOgtAl_(2)O_(3)`
`K_(2)OgtCaOgtMgO`

Answer :A


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