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Name an element which is invariably biva...

Name an element which is invariably bivalent and whose oxide is soluble in excess of NaOH and its dipositive ion has a noble gas core.

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`Be,BeO` dissolves in alkali to form beryllates.
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CENGAGE CHEMISTRY ENGLISH-APPENDIX - INORGANIC VOLUME 1-Exercise Short
  1. Compared with the alkaline earth metals, the alkali metals exhibit

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  2. Arrange sulphates of group 2 in decreasing order of solubility of wate...

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  3. Arrange carbonates fo group 2 in increasing order of thermal stability...

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  4. Arrange hydroxides of group 2 elements in order of increasing basicity...

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  5. Arrange Be,Mg,Ca,Sr and Ba in increasing order of reactivity.

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  6. What kind of metals can form superoxides?

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  7. Name the alkali metal which can combine directly with As,P,S and halog...

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  8. Which among Na(2)O(2),Li(2)O,K(3)N and Li(3)N is not known?

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  9. Which among Na,K,Pb and Li has the lowest melting point?

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  10. Name an element which is invariably bivalent and whose oxide is solubl...

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  11. List the raw materials required in the manufacture of portland cement....

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  12. Arrange the following in order of the increasing covalent character: ...

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  13. Which alkali metal and alkaline earth metal are radioactive? Give thei...

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  14. Which alkali metal forms covalent compound?

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  15. Give one important ore of each of sodium and megnesium.

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  16. Give chemical formula of dolomite and carnallite.

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  17. Why the elements of the second row (first short period)? exhibit a nu...

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  18. Name one reagent or one operation to distinguish between: Be(OH)(2) a...

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  19. Sodium cannot be obtained by the electrolysis of aqueous solution of N...

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  20. Dead burnt plaster is

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