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Explain why can alkali and alkaline eart...

Explain why can alkali and alkaline earth metals not be obtained by chemical reduction methods?

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Alkali and Alkaline earth metals cannot be obtained by chemica reduction becauese

Alkali metals can be obtained by chemical reduction of their compounds.

Give reasons for the following: (a). Alkanline earth metals cannot be obtained by chemical reduction. (b). Alkaline earth metals have stronger tendancy to form complexes than alkai metals. (c ). Magnesium nitride on reacting with water gives ammonia, but magnesium chloride does not give HCI on reacting with water.

Explain why alkaline earth metals are harder than alkali metals ?

MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -Revision Exercises (Objective/Very Short answer questions(One Word/ Very Short sentence Answer ) )
  1. Write the reason behind the digonal relationship among element.

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

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

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

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

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

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  7. Why is sodium metal kept under kerosene oil ?

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

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  9. What is dead burnt plaster?

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

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

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

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

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  14. Which of the following form nitride?

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  15. Give two uses of Na2CO(3).

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  16. Name the radioactive element of group 1

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

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  18. What is the most abundant element on earth ?

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  19. What is the biological important of Na^(+) and K^(+) ions in cell flui...

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  20. Which out of MgSO4 or BaSO4 is more soluble in water?

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