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What are the common physical and chemical features of alkali metals?

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Knowledge Check

  • The alkali metals

    A
    forms salt like hydrides
    B
    form salts which are predominantly covalent
    C
    show decreased chemical reactivity with dry oxygen in going from Li to Cs
    D
    show increasing electronegativity from Li to Cs.

  • The alkali metals

    A
    form salt like hydrides
    B
    form salts which are predominantly covalent
    C
    show decreased chemical reactivity with dry oxygen in going from Li to Cs
    D
    show increasing electronegativity from Li to Cs.

  • The alkali metals,

    A
    form salt like hydrides
    B
    form salts which are predominantly covalent
    C
    show decreased chemical reactivity with dry oxygen in going from U to.Cs
    D
    show increasing electronegativity from Li to Cs
    • MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -Revision Exercises (Objective/Very Short answer questions( Short Answer Questions ) )
    1. What are the common physical and chemical features of alkali metals?

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    2. Why do not Be and Mg give characteristic flame colouration while other...

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    3. Discuss the general characteristics and gradation in properties of alk...

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    4. How do the following properties vary among alkali metals ? (i) Atom...

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    5. a. Name the alkali metals which form superoxides on heating in excess ...

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    6. Alkali metals are strong reducing agents.

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    7. Certain characteristics lithium differ from those of other alkali meta...

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    8. Compare the alkali metals and alkaline earth metals with respect to (a...

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    9. Sodium can be extracted on a commercial scale by the electrolysis of u...

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    10. Give the chemical formulae of the following ores: (i) Dolomite (i...

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    11. a. Name the alkali metals which form superoxides on heating in excess ...

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    12. Why is it necessary to add gypsum in the final stages of the preparati...

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    13. Describe a method for the preparation of quicklime. What happens when ...

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    14. What is the difference between quick lime, slaked lime, milk of lime a...

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    15. Contrast the action of heat on the following and explain your answer ...

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    16. State as to why (a) a solution of Na(2)CO(3) is alkaline ? (b) alk...

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    17. In what ways lithium shows similarities to magnesium in its chemical b...

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    18. State the effect of heat on (i) gypsum (ii) limestone (iii) epsom s...

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    19. CEMENT

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    20. Write three general characteristics of the s-block of the periodic tab...

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