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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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Give one example each of acidic, basic, amphoteric and neutral oxides.

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(a). With the help of examples, describe how metals oxides differ from non-metal oxides. (b). Which of the following elemetns woul yield: (i) an acidic oxide, (ii) a basic oxide, and (iii) a neutral oxide Na, S, C, K, H

The element that forms most basic oxide is :

What is the nature of oxides formed by most of p -block elements?

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 ?

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 ?

Which element among the following cannot form an amphoteric oxide ?

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