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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
As the size increases the basic nature of oxides changes to acidic nature i.e., acidic nature increases.
`SO_(2)underset("Acidic") (gt) P_(2)O_(3)gt underset("Weak acidic")(SiO_(2))gt underset("Amphoteric")(Al_(2)O_(3))`
`SO_(2)` and `P_(2)O_(3)` are acidic as their corresponding acids `H_(2)SO_(3)` and `H_(3)PO_(3)` are strong acids.
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Knowledge Check

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

    A
    `AI_(2)O_(3) lt SiO_(2) lt SO_(2) lt P_(2)O_(3)`
    B
    `SiO_(2) lt SO_(2) lt AI_(2)O_(3) lt P_(2)O_(3)`
    C
    `SO_(2) lt P_(2)O_(3) lt SiO_(2) lt AI_(2)O_(3)`
    D
    `Al_(2)O_(3) lt SiO_(2) lt P_(2)O_(3) lt SO_(2)`

  • 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_(3)ltP_(2)O_(5)`
    B
    `SiO_(2) lt SO_(3) lt Al_(2)O_(3) lt P_(2)O_(5)`
    C
    `SO_(3)ltP_(2)O_(5)ltSiO_(2)ltAl_(2)O_(3)`
    D
    `Al_(2)O_(3)ltSiO_(2)ltP_(2)O_(5)ltSO_(3)`

  • Among Al_(2)O,SiO_(2),P_(2)O_(3) and So_(2) the correct order of acid 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)`

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