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The process of of coating zinc over a...

The process of of coating zinc over a metal is called as ___________.

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SURA PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS -ADDITIONAL QUESTIONS & ANSWERS ( FILL IN THE BLANKS )
  1. Electromagnets , springs and anchors are prepared from .

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  2. is the gradual destruction of metals by chemical or electrochemical ...

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  3. The process of of coating zinc over a metal is called as .

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  4. The easily corrodible metal is called as to act as a anode ensuring...

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  5. Corrosive action in the presence of moisture is called .

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  6. Metals posses a high lustre called .

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  7. and are metals which can be cut with a knife .

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  8. Molecule of metals in their vapour state are usually .

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  9. On diluting sodium meta aluminate with water , a precipitate of si...

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  10. 2Al(OH)2 overset(1000^(@)C)to +3H(2)O.

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  11. Aluminium is produced by the electrolytic reduction of fused in the ...

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  12. On heating at 800^(@)C, aluminium forms and

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  13. does not react with aluminium due to its layer of oxide on it.

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  14. When steam is passed over red hot aluminium , is produced.

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  15. The density of aluminium is .

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  16. The melting point of aluminium is .

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  17. Aluminium reacts with caustic alkalis to form .

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  18. acid does not attack aluminium.

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  19. Copper pyrite , copper glance and cuprite are ores of .

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  20. Copper pyrite yields nearly % of the world production of copper .

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