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Name the chemical formula of zinc blende...

Name the chemical formula of zinc blende and galena.

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Zinc blende is zinc sulphide (ZnS) while galena is lead sulphide (PbS).
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DINESH PUBLICATION-METALS AND NON-METALS-Very Short Answer Questions
  1. Name the non-metal which can conduct electricity.

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  2. Write the names of two neutral oxides.

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  3. Name the chemical formula of zinc blende and galena.

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  4. Write one example each of : (i) a metal having low melting point an...

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  5. Which acts as anode in the electro-refining of metals ?

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  6. Which is the name of the bond formed when a metal atom combines with t...

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  7. How will you account for the high melting points of salts ?

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  8. Name two metals which exist in the native or free state.

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  9. What reaction takes place when manganese dioxide is heated with alumin...

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  10. Can rusting of iron nail occur in distilled water ?

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  11. Which metal is the best conductor of electricity ?

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  12. Which metal is used in amalgams ?

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  13. Why are metals good conductors of electricity while non-metals are not...

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  14. Why do metals generally appear to be dull ?

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  15. Name two non-metals which exist in the solid state the two non-metals ...

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  16. Name metal whose foils are used for the packing of food materials.

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  17. The electronic configuration of an elements 'E' (Z = 16) is 2, 8, 6. W...

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  18. Alloys are used in electrically heating devices rather that pure metal...

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  19. A shining metal 'X' on heating gives copper (II) oxide or cupric oxide...

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  20. Why do silver articles become black after some time ?

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