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Serveral blocks of magnesium are fixed t...

Serveral blocks of magnesium are fixed to the bottom of a ship to

A

prevent puncturing by under sea rock

B

Keep away the sh arks

C

make the ship lighter

D

to prevent the action of water and salt.

Text Solution

Verified by Experts

The correct Answer is:
D
Magnesium prevents the action of water and salt on iron.
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DINESH PUBLICATION-ALKALI EARTH METALS-Revision Questions From Competitive Exams.
  1. The solubilities of carbonates decreases down the magnesium group due ...

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  2. The substance not likely to contain CaCO(3) is:

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  3. Serveral blocks of magnesium are fixed to the bottom of a ship to

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  4. In curing cement plasters, water is sprinkled from time to time. This ...

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  5. The correct order of solubility of the sulphates of alkaline earth met...

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  6. The product obtained on fusion of BaSO(4) and Na(2)CO(3) is

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  7. Dead burnt plaster is

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  8. Which of the following is not an ore of magnesium?

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  9. Pick out statement (s) which is/are not true about diagonal relationsh...

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  10. Which of the following exists in polymeric form

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  11. Dead burnt plaster is

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  12. A solid compound 'X' on heating gives CO(2) gas and a residue. The res...

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  13. When calcium carbide is heated in atmosphere of nitrogen in an electri...

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  14. Which pair of the following chlorides does not impart color to the fla...

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  15. Which of the following pairs of substance would give same gaseous prod...

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  16. Which of the following does not contain magnesium

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  17. Property of the alkaline earth metals that increases with their atomic...

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  18. Which one of the following alkaline earth metal sulphates has its hydr...

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  19. Which of the following carbonates is the most stable

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  20. The compound A on heating gives a colourless gas and a residue thata d...

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