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Oxides formed by p-block elements may be...

Oxides formed by `p`-block elements may be
`(i)` basic
`(ii)` acidic
`(iii)` amphoteric
`(iv)` neutral

A

`(i), (ii)`

B

`(ii), (iii)`

C

`(ii), (iii), (iv)`

D

`(i), (ii), (iii), (iv)`

Text Solution

Verified by Experts

The correct Answer is:
D
The oxides of metals are basic `(Tl_(2)O)`, the oxides of nonmetals are acidic `(CO_(2))` or neutral `(CO)`, while the oxides of metalloids are amphoteric `(AS_(2)O_(3))`.
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Knowledge Check

  • The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on the basis of oxygen content. (a) Normal oxides : These oxides which contain oxygen atom as permitted by the normal oxidation number, i.e., -2 normal oxide may be acidic, basic, amphoteric or neutral. (b) Polyoxides : The oxides which contain oxygen atoms different than those permitted by the normal oxidation number of -2 . (i) Peroxides : Two oxygen atoms are linked to each other and oxyegen has -1 oxidation number. They contain (O -O)^(2-) unit. (ii) Superoxodes : These oxides contain (O-O)^(-1) unit, i.e., each O-atom has oxidation number -1//2 . (c) Suboxides : These contain low content of oxygen than expected. (d) Mixed oxides : These oxides are made of two simpler oxides. Which of the following pairs contains amphoteric oxides ?

    A
    `BeO, BaO`
    B
    `BeO, Al_2 O_3`
    C
    `Al_2 O_3, P_2 O_5`
    D
    `FeO, CuO`

  • The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on the basis of oxygen content. (a) Normal oxides : These oxides which contain oxygen atom as permitted by the normal oxidation number, i.e., -2 normal oxide may be acidic, basic, amphoteric or neutral. (b) Polyoxides : The oxides which contain oxygen atoms different than those permitted by the normal oxidation number of -2 . (i) Peroxides : Two oxygen atoms are linked to each other and oxyegen has -1 oxidation number. They contain (O -O)^(2-) unit. (ii) Superoxodes : These oxides contain (O-O)^(-1) unit, i.e., each O-atom has oxidation number -1//2 . (c) Suboxides : These contain low content of oxygen than expected. (d) Mixed oxides : These oxides are made of two simpler oxides. Which of the following pairs contains neutral oxides ?

    A
    `SO_2, SO_3`
    B
    `N_2 O_3, N_2 O_5`
    C
    `CO, NO`
    D
    `Na_2 O, CaO`

  • Which element among the following cannot form an amphoteric oxide ?

    A
    Al
    B
    Sn
    C
    Sb
    D
    P

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