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The reaction of water with Na and K is...

The reaction of water with Na and K is

A

Reversible

B

`Irreverisible and endothermic

C

Exothermic

D

Endothermic

Text Solution

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The correct Answer is:
C
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MARVEL PUBLICATION-S BLOCK ELEMENTS -TEST YOUR GRASP
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  3. The elements of group 1 are called alkali metals because

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  9. "Electron" is an alloy of

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  10. Sodium burns in dry air to give

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  11. Select odd pair of name of chemical and its chemical composition.

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  12. The raw materials required for the manufacture of Na(2)CO(3) by Solva...

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  13. The carbonate that will not decompose on heating is

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  14. The alkali metal used in photoelectric cell is

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  15. Which of the following if good source of potassium ?

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  16. The first ionization enthalpy of magnesium is lower than the first ion...

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  17. Which of the following feact only with boiling water ?

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  18. Mg burns in air to give

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  19. Beryllium and aluminium exhibit many properties which are similar . Bu...

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  20. Which of the following is not a compound of calcium ?

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  21. Mark the compound which does not contain calcium carbonate ?

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