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Which of the following is formed when ca...

Which of the following is formed when calcium combines with oxygen

A

Ca

B

CaO

C

`CaO_(2)`

D

`Ca_(2)O_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Ca+1/2 O_(2) to CaO`
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ERRORLESS -S AND P BLOCK ELEMENTS-Ordinary thinking (Alkaline earth metals)
  1. Peroxide ion is present in :

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  2. Which gas is evolved by the treatment of magnesium with very dilute so...

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  3. A metal M readily forms its sulphate MSO(4) which is water soluble. It...

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  4. Which one of the following is the correct statement

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  5. Which of the following is the strongest base

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  6. Mg burns in CO to produce

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  7. Which of the following is formed when calcium combines with oxygen

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  8. Slow acting nitrogenous fertilizer among the following is

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  9. In the presence of cobalt chloride (CoCl2), bleaching powder decompose...

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  10. Bone ash contains

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  11. A metal is burnt in air and the ash on moistening smells of ammonia. T...

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  12. Alkaline earth metals belong to the

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  13. Phosphine, acetylene and ammonia can be formed by treating water with

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  14. H(2)SO(4) is added to 20% cold aqueous solution of "BaO"(2). The produ...

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  15. The fluorspar is

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  16. deep pink colour is given to flame by the salts of

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  17. Assertion: Magnesium continue to burn in nitric oxide. Reason : Duri...

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  18. Assertion: Anhydrous BaO(2)is used for preparing H(2)O(2). Reason : ...

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  19. Assertion: Barium is not required for normal biological function in hu...

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  20. Assertion (A): magnesium is not present in enamel of human teeth. Re...

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