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Among Al(2)O(3),SiO(2),P(2)O(5) and SO(3...

Among `Al_(2)O_(3),SiO_(2),P_(2)O_(5) and SO_(3)` the correct order of acid strength is :-

A

`Al_(2)O_(3)ltSiO_(2)ltSO_(2)ltP_(2)O_(3)`

B

`SiO_(2)ltSO_(2)ltAl_(2)O_(3)ltP_(2)O_(3)`

C

`SO_(2)ltP_(2)O_(3)ltSiO_(2)ltAl_(2)O_(3)`

D

`Al_(2)O_(3)ltSiO_(2)ltP_(2)O_(3)ltSO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
With decrease in size from Al to S the basic nature of oxide decrease and acidic nature increases.
`Al_(2)O_(3)ltSiO_(2)ltP_(2)O_(3)ltSO_(2)`
`Al_(2)O_(3)` is amphoteric, `SiO_(2)` is slightly acidic whereas `P_(2)O_(3)` and `SO_(3)` are the anhydrides of acids `H_(3)PO_(3)` and `H_(2)SO_(3)`.
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