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Metal A when burnt in air forms only an ...

Metal A when burnt in air forms only an oxide while metal B When brunt in air forms a mixture of oxide and nitride. A and B are

A

Mg and Ca

B

K and Mg

C

Be and Ca

D

Na and Ca

Text Solution

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The correct Answer is:
B
K can form only oxides when reacts with air and Mg can form oxide and nitride.
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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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