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What is the composition of Cryolite ?...

What is the composition of Cryolite ?

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MBD PUBLICATION-S- BLOCK ELEMENTS [ALKALI AND ALKALINE EARTH METALS]-QUESTION TYPE
  1. Phosphorite is the ore ofand has composition of.

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  2. For making cotton shrinkable, the compound used is.

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  3. What is the composition of Cryolite ?

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  4. What happens when sodium reacts with ammonia ?

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  5. Why alkali metals act as strong reducing agents ?

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  6. Give the principle of preparation of sodium hydroxide.

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  7. Write the chemical formula for Chile salt peter and Brown-ring produce...

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  8. What happens when sodium reacts with water ? Give equation

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  9. What is plaster of paris ? Mention two of its uses.

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  10. What is 'Bleaching powder' ? Mention one method of its preparation.

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  11. Explain about the reaction when excess of CO2 gas is passed through li...

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  12. How can borax be obtained from sodium metaborate ?

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  13. What happens when dilute NaOH is added to a solution of aluminium chlo...

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  14. What happens when Potassium iodide solution is added to an aqueous sol...

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  15. What is plaster of paris ? How is it prepared ?

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  16. Why CaCl2 is used along with NaCl in the extraction of sodium ?

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  17. What happens when sodium reacts with ammonia ?

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  18. Give two uses of sodium ?

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  19. How can caustic soda is prepared ?

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  20. What happens when cold NaOH reacts with halogens ?

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