1.

Which of the following oxide is basic ?

Answer»

`Na_(2)O`
`P_(4)O_(10)`
`CO_(2)`
`Al_(2)O_(3)`

Solution :As we move from left to RIGHT in a period the basicity of oxide decreases.
`:. Na_(2)O gt Al_(2)O_(3) gt CO_(2) gt P_(4)O_(10)`


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