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Compound X and aluminium are used to joi...

Compound X and aluminium are used to join railway tracks. (a) Idemjfy the compound X (b) Name the reaction (c) Write down its reaction.

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DINESH PUBLICATION-METALS AND NON-METALS-Short Answer Questions
  1. Give reason for the following (i) Iron grills are frequently painte...

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  2. In one method of rust prevention, the iron is not coated with anything...

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  3. Compound X and aluminium are used to join railway tracks. (a) Idemjfy ...

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  4. An ore on treatment with dilute hydrochloric acid produces brisk effer...

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  5. State the property utilized in the following : (i) Graphite in maki...

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  6. (i) Carbonate and sulphide ores are usually converted into oxides duri...

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  7. The reaction of metal 'X' with Fe(2)O(3) is highly exothermic and is u...

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  8. Aluminium oxide and zinc oxide react with both acids are bases to prod...

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  9. Describe an activity to show that metals are good conductors of electr...

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  10. (a) In the electrorefining of impure copper metal, what are used as ca...

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  11. (a) What is an alloy ? How is it prepared ? Give two examples of alloy...

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  12. Write one example each of the following metals : (a) Most malleable...

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  13. A metal 'P' when exposed to moist air for longer period of times, lose...

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  14. Name the constituents elements of the alloys (i) Brass (ii) Bronze (ii...

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  15. Hydrogen gas is not evolved when most metals react with nitric acid. S...

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  16. (a) Why are metals not generally found in their free state ? (b) If...

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  17. Write balanced chemical equation for the reactions taking place when ...

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  18. An element 'X' burns in oxygen to form an electrovalent compound XO. S...

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  19. A metal E is stored under kerosene. When a small piece of it is left o...

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  20. Write the names and symbols of two most reactive metals. Explain by dr...

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