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What are the common physical and chemica...

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
    • PRADEEP-S-BLOCK ELEMENTS (ALKALI AND ALKALINE EARTH METALS) -NCERT Questions And Exercises With Answers (NCERT Exercises)
    1. What are the common physical and chemical features of alkali metals?

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

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    3. Why are alkali metals not found in nature ?

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    4. Find out the oxidation state of sodium in Na(2)O(2).

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    5. Explain why is sodium less reactive than potassium.

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

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

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

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    9. Why are potassium and caesium, rather than lithium used in photoelectr...

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    10. When an alkali metal dissolves in liquid ammonia the solution can acqu...

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    11. Beryllium and magnesium do not give colour to flame whereas other alka...

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    12. Discuss the various reactions that occur in the Solvay process

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    13. v49newFlow

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    14. Why is Li(2)CO(3) decomposed at a lower temperature whereas Na(2)CO(3)...

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    15. Compare the solubility and thermal stability of the following compound...

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    16. Starting from sodium chloride, how will you proceed to prepare (i) sod...

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    17. What happens when (a) magensium in burnt in air, (b) quicklime is heat...

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    18. Describe two important uses of each of the following: (a) casutic so...

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    19. Draw the structures of (i) BeCl(2) (vapour) (ii) BeCl(2) (solid).

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    20. The hydroxides and carbonates of sodium and potassium are easily solub...

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