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IIA group metal oxides are less basic th...

IIA group metal oxides are less basic than IA group metal oxides because

A

II group metals are less electropositive than I group metals

B

II group metals are more electroposite than I group metals

C

I group elements are denser than II group metals

D

I group elements are smaller than II group elements

Text Solution

Verified by Experts

The correct Answer is:
A
Basic nature of metal oxides depends on their electropositive character. So IA group metals being more electropositive than IIA group elements, IA group metal oxides are more basic than oxides of IIA group elements.
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Metallic oxides are generally

a) All non - metal oxides are basic in nature. b) All metal ozicles are acidic in nature Which of the above ls incorrect ?

What is the nature of metal oxides ?

(A): Oxides of alkaline earth metals are less basic than oxides of alkali metals (R) : Alkaline earth metals are less electropositive than alkali metals

(A): Oxides of II A group elements are stable (R) : Oxides of IIA group elements have high lattice energy.

Non-metallic oxides are in___nature

____is IIA group element.

What is the missing element in IIA group ?

The following some statments about IA group elements i) The redioactive IA group element is Fr ii) Alkali metals donot occurs in free state because of their high reactivity iii) The most abundant alkali metal in the earth is Na

AAKASH SERIES-ALKALINE EARTH METALS-ADDITIONAL PRACTICE EXERCISE (LEVEL -1 (MAIN)
  1. The abundance of alkaline earathmetails in the earth crust is in the o...

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  2. Which of the following halide is covalent

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  3. Which of the following alkaline earth metal does not react with cold w...

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  4. Which of the following is a amphoteric metal

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  5. lonic nature of hydrides is

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  6. Beryllium differs from other alkaline earth metals because of

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  7. Magnesite is a mineral of

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  8. Calcination of limestone containing clay at high temperature is fusibl...

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  9. Mortar is a mixture of

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  10. Hydraulic mortar is used as

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  11. Which is not a use of plaster of pairs

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  12. Which ion is present in bones and teeth as apatite ?

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  13. Enamel on teeth is

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  14. Which of the following is a role of Ca^(+2) in biology

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  15. Enzymes like phosphohydrolases and phosphotransferases contain

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  16. CaCO(3)overset(Delta)underset(1073)rarr CaO+CO(2) (Reverse reaction ...

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  17. Alkaline earth metals exhibit +2 oxidation state in aqueous solution d...

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  18. Metal A when burnt in air forms only an oxide while metal B When brunt...

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  19. IIA group metal oxides are less basic than IA group metal oxides becau...

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  20. Chemical A is used for water softening to remove temporary hardness. A...

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