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(a). Name two physical properties each o...

(a). Name two physical properties each of sodium and carbon in which their behaviour is not as expected from their classification as metal ad non-metal respectively.
(b) Name two metals whose melting points are so low that they melt when held in the hand.

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(a). Sodium metal: Soft, low melting point,Carbon non-metal: Graphite conducts electricity, diamond has a very high melting point (b) Gallium and Cesium
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LAKHMIR SINGH & MANJIT KAUR-METALS AND NON-METALS-Exercise
  1. You are given a dry cell, a torch bulb with holder, wires ad crocodile...

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  2. State any five physical properties of metals and five physical propert...

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  3. (a). Name two physical properties each of sodium and carbon in which t...

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  4. Metals are said to be shiny. Why do metals generally appear to be dull...

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  5. (a). What are metals? Name five metals. (b). Name a metal which is s...

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  6. (a). Define non-metals. Give five examples of non-metals. (b). Name ...

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  7. (a). What is meant by the reactivity series of metals ? Arrange the fo...

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  8. The elements whose oxides can turn phenolphthalein solution pink are:

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  9. "Is malleable and ductile " best describes:

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  10. One of the following is not a neutral oxide. This is :

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  11. A basic oxide will formed by the element :

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  12. An acidic oxide iis produced by the element:

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  13. You are given a solution of AgNO(3) which of the following do you thin...

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  14. Out of aluminium, copper, calcium and tin, the most reactive metal is:

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  15. The least reactive metal among the following is :

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  16. An element X reacts with hydrogen, when heated, to form a covalent hyd...

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  17. Out of the following oxides, the amphoteric oxide is:

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  18. The metals which can produce amphoteric oxides are :

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  19. An element X forms two oxides XO and XO(2). The oxide XO is neutral bu...

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  20. The element whose oxides can turn litmus solution blue are :

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