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Identify the correct order of acidic str...

Identify the correct order of acidic strengths of `CO_2,CuO, CaO and H_2O`

A

`CaO lt CuO lt H_(2)O lt CO_(2)`

B

`H_(2)O lt CuO lt CaO lt CO_(2)`

C

`CaO lt H_(2) O lt CuO lt CO_(2)`

D

`H_(2)O lt CO_(2) lt CaO lt CuO`

Text Solution

Verified by Experts

The correct Answer is:
A
`CaO lt CuO lt H_(2) P lt CO_(2)` (Apply Fajans' rule)
Going from left to right in the periodic table along a group, the acidic character of oxides goes on decreasing.
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