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Which of the following metals from ampho...

Which of the following metals from amphoteric oxides?

A

`Be, A1, Ga, Sn`,and `Pb`

B

`A1,Ga,Sn`, and `Pb`

C

`Sn` and `Pb`

D

`A1`and `Ga`

Text Solution

Verified by Experts

The correct Answer is:
A
Oxides of these metals react with acids as well as bases. For example, stannous oxide, `SnO`, is an amphoteric oxide as it dissolves in both acids and alkalies:
`SnO+2HC1 rarr SnC1_(2) +H_(2)O`
`SnO+2NaOH rarr Na_(2)SnO_(2) +H_(2)O`
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R SHARMA-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN ELEMENTS-Follow-up Test
  1. Which of the metals are usually referred to as lighter metals?

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  2. Metals are separated from nonmetals by a diagonal band of semimetals r...

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  3. Which of the following metals from amphoteric oxides?

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  4. Both metals and nonmetals behave similarly towards

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  5. Which of the following is not the characteristic feature of metals?

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  6. Which of the following is not the characteristic feature of nonmetals?

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  7. Arrange the following elements in the increasing order of metallic cha...

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  8. The electron density in an atom extends far beyond the nucleus. In pra...

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  9. For all practical purposes, the size of an individual atom cannot be u...

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  10. The internuclear distance between any two carbon atoms in diamond is 1...

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  11. The covalent radius (r(cov)) is defined as the half-distance between t...

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  12. There is no real boundary to an atom because the electrons can be defi...

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  13. The van der Waals radius (r(vdw)) is defined as the half-distance betw...

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  14. The concept of van der Waals radius is confined to

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  15. Metallic radius is usually not defined forelements.

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  16. Atomic radii can be measured by

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  17. Which of the following radius is not described for the element chlorin...

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  18. The magnitude of the does not depend upon the packing of the particles...

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  19. The internuclear distance between adjacent chlorine atoms of the two n...

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  20. Which of the noble gases can be described in terms of either covalent ...

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