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Write the reason behind the digonal rela...

Write the reason behind the digonal relationship among element.

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MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -Revision Exercises (Objective/Very Short answer questions(One Word/ Very Short sentence Answer ) )
  1. The order of basicity of hydroxides of alkali metals is

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  2. Formula of plaster of Paris is

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  3. Write the reason behind the digonal relationship among element.

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  4. How do the solubilities of alkaline earth metal sulphate and carbonate...

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  5. Give two main reasons for the differences of properties of Li and Na.

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  6. Give the chemical formula of limestone and Plaster of Paris.

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  7. Explain why can alkali and alkaline earth metals not be obtained by ch...

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  8. Potassium carbonate can be obtained by Solvay's process.

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  9. Why is sodium metal kept under kerosene oil ?

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  10. What is quicklime? What happens when we add water to quicklime ?

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  11. What is dead burnt plaster?

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  12. Why sodium cannot be prepared by electrolysis of its aqueous solution?

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  13. Lithium forms monoide, sodium gives peroxide while the rest of the alk...

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  14. a. How does basic character of oxides and hydroxides vary down the gro...

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  15. Compare the action of heat on LiNO3 and NaNO3.

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  16. Which of the following form nitride?

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  17. Give two uses of Na2CO(3).

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  18. Name the radioactive element of group 1

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  19. The metal ion which does not give any flame colouration is-

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  20. What is the most abundant element on earth ?

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