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What is magnesia cement? Give 'its compo...

What is magnesia cement? Give 'its composition?

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V PUBLICATION-THE s- BLOCK ELEMENTS-QUESTION BANK
  1. Why does magnesium has a higher ionization enthalpy than sodium?

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

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

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

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

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

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

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

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

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  10. What is fly ash?

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

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  12. Give the chemical formula of dolomite and carnallite?

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

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

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  15. Why does table salt get wet in rainy season?

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  16. The alkali metals and their salts impart characteristic colour to an o...

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  17. The s-block of periodic table constitutes alkali metals and alkaline e...

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  18. Why, alkali metals and the alkaline earth metals do not occur in free ...

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  19. What is the use of 'KO2' in oxygen masks?

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  20. Standard solution of sodium hydroxide cannot be prepared by weighing, ...

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