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Give reasons. (i )Solutions of alkali me...

Give reasons. (i )Solutions of alkali metals in liquid ammonia are blue in colour.

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Alkali metals dissolve in liquid ammonia to give blue coloured solutions. Why?

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The metal that dissolves in liquid ammonia giving a dark blue coloured solution is.

When sodium metal dissolves in liquid ammonia, it gives a deep blue coloured solution. Explain the reason.

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V PUBLICATION-THE s- BLOCK ELEMENTS-QUESTION BANK
  1. (a) What happens when alkali metals dissolved in ammonia? (b) Complet...

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  2. (a) Name the chief factor responsible for the anomalous behaviour of l...

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  3. Give reasons. (i )Solutions of alkali metals in liquid ammonia are blu...

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  4. Why Li2CO3 decomposes at lower temperature whereas Na2CO3 at higher te...

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  5. Sodium metal is kept under kerosene. Explain?

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  6. A piece of magnesium is burned in air. Which are the reactants here ...

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  7. BeCl2' can be easily hydrolysid. Explain?

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  8. Why does magnesium has a higher ionization enthalpy than sodium?

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  9. Why is it that 'BeSO4' and 'MgSO4' are soluble but 'BaSO4' is insolubl...

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  10. What is magnesia cement? Give 'its composition?

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  11. Beryllium exhibits some similarities with aluminium. Write three such ...

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  12. The energy released during the addition of an electron to an isolated ...

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  13. Why lithium forms only lithium oxide and not perioxide or superoxide?

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  14. Out of 'KOH' and 'NaOH', which is stronger base and why?

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  15. Potassium carbonate cannot be prepared by Solvay process. Why?

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  16. Why an aqueous solution of sodium carbonate is'alkaline?

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  17. What is fly ash?

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  18. compound of calcium is used in hospitals for setting fracture of bones...

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  19. Give the chemical formula of dolomite and carnallite?

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  20. Sodium fire in the laboratory should not be extinguished by pouring wa...

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