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The process of separating gangue from ...

The process of separating gangue from the ores is called concentration of ores. True Or False.

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CHETAN PUBLICATION-METALLURGY-(A) 5. STATE WHETHER THE FOLLOWING STATEMENTS ARE TREU OR FALSE, CORRECT THE FALSE STATEMENT.
  1. In the process of Kalhaee' a metal is coated with Zinc to prevent it c...

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  2. Nitric acid is a stronge oxidizing agent.

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  3. How alkali metals react with water? Give an equation?

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  4. Why d- block elements are known as transition element ?

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  5. Generally the ionic compounds have high melting points.

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  6. In the process of Kalhaee' a metal is coated with Zinc to prevent it c...

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  7. True or False Non-metals are good conductors of heat and electricity.

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  8. Comb rubbed with hair electrons from the hair and become negatinvely ...

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  9. The most reactive metal.

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  10. Non-metals combine with oxygen to form basic oxides.

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  11. A mineral from which metal can be profitably extracted is called ……………

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  12. A magnetic needle is kept in a non-uniform magnetic field. It experien...

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  13. The process of separating gangue from the ores is called concentrati...

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  14. The process used for heating of carbonate ores.

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  15. The reactivity of metals increase down to reactivity series.

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  16. Electronic configuration of Aluminium is 2,8,2.

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  17. Substance used to decrease the melting point of alumina in Halls proce...

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  18. Electrolysis is the method used to obtain pure metals from impure meta...

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  19. The process of converting sulphite ores into oxides by heating strongl...

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  20. Iodine is a lustrous metal. True/False

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