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The metal which can be extracted from py...

The metal which can be extracted from pyrolusite ore is :

A

mercury

B

manganese

C

aluminium

D

magnesium

Text Solution

Verified by Experts

The correct Answer is:
B
b
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LAKHMIR SINGH & MANJIT KAUR-METALS AND NON-METALS-Exercise
  1. Silver articles become black on prolonged exposure to air. This is due...

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  2. A sulphide ore is converted into metal oxide by the process of:

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  3. The metal which can be extracted from pyrolusite ore is :

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  4. Calamine ore can be converted into zinc oxide by the process of :

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  5. Zinc blende ore can be converted into zinc oxide by the process of :

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  6. An element A which is a part of common salt and kept under kerosene re...

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  7. A metal which exists as a liquid at room temperature is obtained by he...

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  8. No chemical reaction takes place when granules of a rusty brown solid ...

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  9. In an electrolytic tank, aluminium metal is being extracted by the ele...

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  10. A metal X which is resistant to corrosion is produced by the electroly...

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  11. When an object made of metal A is kept in air for a considerable time,...

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  12. Four metals P, Q, R and S are all obtained by the reduction of their o...

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  13. A black metal oxide XO(2) is used as catalyst in the preparation of ox...

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  14. Metals X and Y can be recovered from the anode mud left behind after t...

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  15. Give an example of a metal which (i) is a liquid at room temperatur...

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  16. Explain the meanings of malleable and ductile.

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  17. Why is sodium kept immersed in kerosene oil?

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  18. Write equations for the reactions of (i) iron with steam (ii) calc...

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  19. Samples of four metals A, B, C and D were taken and added to the follo...

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  20. Which gas is produced when dilute hydrochloric acid is added to a reac...

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