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

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

A

`Al_(2)O_(3) lt SiO_(2) lt SO_(2) lt P_(2)O_(3)`

B

`SiO_(2) lt SO_(2) lt Al_(2)O_(3) lt P_(2)O_(3)`

C

`SO_(2) lt P_(2)O_(3) lt SiO_(2) lt Al_(2)O_(3)`

D

`Al_(2)O_(3) lt SiO_(2) lt P_(2) O_(3) lt SO_(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_93) lt SiO_(2) lt P_(2)O_(3) lt SO_(2)`
`Al_(2)O_(3)` is amphoteric, `SiO_(2)` is slightly acidic whereas `P_(2)O_(3) and SO_(2)` are the anhydrides of acids `H_(3)PO_(3) and H_(2)SO_(3)`.
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