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Which of the following reactants are use...

Which of the following reactants are used to carry out the thermite reaction requried for welding the broken railway tracks?

A

`Al_(2)O_(3)+Fe`

B

`MnO_(2)+Al`

C

`Fe_(2)O_(3)+Al`

D

`Cu_(2)O+Fe`

Text Solution

Verified by Experts

The correct Answer is:
C
c
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LAKHMIR SINGH & MANJIT KAUR-METALS AND NON-METALS-Exercise
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  2. Which of the followmg metals exist in their native state in nature?

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  3. Which of the following reactants are used to carry out the thermite re...

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  4. Which of the following alloys contains a non-metal as one of the const...

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  5. During the refining of a impure metal by electrolysis, the pure metal ...

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  6. Which of the following metals can be obtained from haematite ore?

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  7. Brass is an alloy of:

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  8. The metal which is always present in an amalgam is :

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  9. Manganese metal is extracted from manganese dioxide by a reduction pro...

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  10. The metal which can be extracted simply by heating the cinnabar ore in...

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  11. Galvanisation is a method of protecting iron from rusting by coating i...

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  12. Which of the following metals are extracted by the electrolysis of the...

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  13. Rock salt is an ore of one of the following metals. This metal is :

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  14. Silver articles become black on prolonged exposure to air. This is due...

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

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

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

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

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

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

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