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(a) Name the chemical compound which is ...

(a) Name the chemical compound which is electrolysed in molten state to obtain aluminium metal. Which gas is evolved during this process?
(b). Name the chemical compound which is electrolysed in molten state to obtain sodium metal. Which gas is produced in this process?
(c) name the gas produced when calamine ore is calcined
(d) Name the gas evolved when cinnabar ore is roasted.

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(a) Aluminium oxide: Oxygen
(b) Sodium chloride, Chlorinie (c) Carbon dioxide (d) sulphur dioxide
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LAKHMIR SINGH & MANJIT KAUR-METALS AND NON-METALS-Exercise
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  2. (a) For the reduction of a metal oxide, suggest a reducing agent other...

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  3. (a) Name the chemical compound which is electrolysed in molten state t...

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  4. (a). Name two metals which are found in nature mainly in the free stat...

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  5. (a) What is the difference betwee a mineral and an ore? (b) Which me...

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  6. (a) Name the metal which is extracted from haematite ore. (b) Name o...

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  7. (a) Which metal is extracted from bauxite ore ? (b) Give the name of...

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  8. (a) Name the metal which is extracted from the ore called 'rock salt' ...

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  9. (a) Which metal is extracted from calamine ore ? (b) Name one ore of...

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  10. An ore of manganese metal is:

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  11. Which of the following is not an ore of Iron ?

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  12. The metal which can be extracted from the bauxite ore is:

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  13. The two metals which can be extracted just by heating their sulphides ...

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  14. A common metal which is highly resistant to corrosion is :

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  15. An important ore of zinc metal is:

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  16. The chief ore of aluminium is

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  17. The two metals which are extracted by means of electrolytic reduction ...

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  18. Stainless steel is very useful material for our life. In stainless ste...

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  19. If copper is kept open in air, it slowly loses its shining brown surfa...

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  20. Which among the following alloys contain mercury as one of its constit...

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