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How many valence electrons are present i...

How many valence electrons are present in following elements ?
(i) sodium
(ii) aluminium
(iii) carbon

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S CHAND IIT JEE FOUNDATION-METALS AND NON METALS-QUESTION BANK-15
  1. What is the most important chemical process in the extraction of any m...

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  2. Non-metals are poor conductors of electricity. Which allotrope of the ...

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  3. How many valence electrons are present in following elements ? (i) s...

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  4. How many valence electrons are present in non-metals?

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  5. Which metals do not corrode casily?

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  6. Name two metals which will displace hydrogen from dilute acids, and tw...

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  7. Which gas is produced when dilute hydrochloric acid is added to a reac...

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  8. You are given a hammer, a battery, a bulb, wires and a switch. (a) H...

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  9. What do you mean by amphoteric oxides? Give examples along with reacti...

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  10. Why is copper used to make hot water tanks but steel (an alloy of iron...

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  11. State two ways by which rusting can be prevented ?

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  12. What type of oxides are formed when non-metals combine with oxygen?

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  13. Sameer took sulphur powder on a spatula and heated it. He collected th...

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  14. Sameer took sulphur powder on a spatula and heated it. He collected th...

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  15. Sameer took sulphur powder on a spatula and heated it. He collected th...

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  16. You must have seen tarnished copper vessels being cleaned with lemon o...

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  17. Why does magnesium ribbon start floating in hot water?

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  18. Why do gallium and cesium melt in our palm?

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  19. A metal with shining appearance reacts with hot water and also with di...

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  20. From the set of metals- zinc, iron, copper and silver, select the fol...

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