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List the raw materials required for the ...

List the raw materials required for the manufacture of Portland cement ? What is the role of gypsum in it

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PRADEEP-S-BLOCK ELEMENTS (ALKALI AND ALKALINE EARTH METALS) -Additional Questions Short Answer Questions (Group 2 Elements-Alkaline Earth Metals)
  1. Why are elements of group 2 known as alkaline earth metals ?

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  2. Why do alkaline earth metals not occur in the free state ? Name some i...

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  3. Name the alkaline earth metals and give their electronic configuration...

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  4. The second ionization enthalpy of an alkaline earth metal is higher th...

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  5. Alkaline earth metals form ionic salts having bivalent cations . Justi...

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  6. Alkali metals are good reducing agents because

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  7. Alkaline earth metals always form divalent cations even through their ...

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  8. Explain the trends in the solubility of carbonates , sulphates and hyd...

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  9. In what respects , does BeCl(2) differ from the halides of other group...

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  10. Like lithium in Group 1 , beryllium shows anomalous behaviour in Group...

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  11. What is diagonal relationship ? Discuss the diagonal relationship betw...

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  12. Beryllium exhibits some similarities with aluminium. Point out four su...

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  13. Give three important uses of each of calcium and magnesium .

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  14. Give one method of preparing quick lime . What happens when rain water...

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  15. How is Plaster of Paris prepared ? Describe its chief property due to ...

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  16. List the raw materials required for the manufacture of Portland cement...

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  17. Discuss the biological importance of Ca^(2+) and Mg^(2+) ions .

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