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The reaction of sodium with oxygen is en...

The reaction of sodium with oxygen is endothermic and spontaneous exothermic and non spontaneous exothermic and spontaneous endothermic and non spontaneous

A

endothermic and spontaneous

B

exothermic and non spontaneous

C

exothermic and spontaneous

D

endothermic and non spontaneous

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The correct Answer is:
C
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ZEN PUBLICATION-METALS AND NON METALS-ZEN ADDITIONAL QUESTIONS SECTION (MULTIPLE CHOICE QUESTIONS)
  1. The liquid non metal is

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  2. An example for an element whose oxide gives an alkali is K S Kr Cu

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  3. The reaction of sodium with oxygen is endothermic and spontaneous exo...

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  4. When calcium reacts with nitrogen it forms calcium nitride as the prod...

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  5. Which of the following oxide(s) of iron would be obtained on prolonged...

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  6. A metal that cannot displace hydrogen from water is Ca K Cu Al

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  7. Which acid when reacted with metals gives water as a product?

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  8. Aqua regia is a mixture of HCl and H N O 3 H N O 3 and H 2 S O 4 H ...

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  9. Which of the following can undergo a chemical reaction? M g S O 4 + F ...

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  10. When a metal X is placed in a blue coloured solution, after some time ...

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  11. The electronic configuration of X,Y and Z are 2,8, 2, 8, 7 and 2,8,2 r...

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  12. Ionic compounds are soluble in

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  13. Reaction between X and Y forms a compound Z. X loses an electrons and ...

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  14. Which of the following metals would be displaced from its solution of ...

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  15. Al(2)O(3) is an example of an axific oxide a basic oxide an amphote...

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  16. An example for a covalent hydride is

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  17. The following compounds conduct electricity in aqueous solution. Which...

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  18. An ore that can be converted into its oxide by roasting. halide ores ...

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  19. An element which exists in a free state is

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  20. During electrolytic refining of zinc, it gets

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