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Calcium is obtained by the...

Calcium is obtained by the

A

Roasting of limestone

B

Reduction of `CaCl` with carbon

C

Electrolysis of a solution of `CaCl_(2)` in water

D

Electrolysis of molten `CaCl_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
`CaCl_(2) rarr underset("Cathode")(Ca^(+2))+underset("Anode")(2Cl^(-))`
Cathode : `Ca^(+2)+2e^(-)rarr Ca`
Anode `: 2C^(-) rarr 2 e^(-)+Cl_(2)`
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A2Z-S BLOCK ELEMENTS ( GROUP 13 - 14)-General Characterstics, Pysical And Chemical Properties Of Alkaline Earth Metals
  1. The first ionisation potentials (eV) of Be and B respectively are

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  2. The set representing the correct order of the first ionisation potenti...

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  3. Calcium is obtained by the

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  4. Which of the following is incorrect ?

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  5. Compounds of alkaline earth metals are less soluble in water than the ...

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  6. Which of the following sulphates is useful in diagnosing stomach or du...

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  7. Lithopone is a mixture of

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  8. The decreasing order of the second ionization potentials of K, Ca and ...

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  9. Li shows the diagonal relationship with

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  10. Mg burns in CO to produce

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  11. Halides of alkaline earth metals form hydrates such as MgCl(2).6H(2)O,...

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  12. Which of the following has maxiumum ionisation energy ?

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  13. Magnesium powder burns in air to give :

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  14. Be(OH)(2) is insoluble in water while Ba(OH)(2) is highly soluble due...

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  15. The solubilities of carbonates decreases down the magnesium group due ...

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  16. Which of the following is decomposed on heating?

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  17. Among the alkaline earth metals, the element forming predominantly cov...

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  18. Iron pipes lying under acidic soil are often attached to blockes of ma...

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  19. Which of the following process is used in the extractive metallurgy of...

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  20. Which of the following two ions are closer to one another in size ?

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