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The s-Block Ele...

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  • Question 1
    1 / -0

    The hydration enthalpies of alkali metal ions in the decreasing order is: Choose the appropriate one.

  • Question 2
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    Divalent magnesium and calcium ions are found in large proportions in biological fluids. They help in

  • Question 3
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    One of the following is the rarest of all alkaline earth metals

  • Question 4
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    Among the alkali metals the most abundant are:

  • Question 5
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    The general electronic configuration of alkali metals is

  • Question 6
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    The general electronic configuration of ns2 exists in:

  • Question 7
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    The alkali metals and their salts impart characteristic colour to an oxidizing flame because:

  • Question 8
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    Flame photometry is used to determine the concentration of the

  • Question 9
    1 / -0

    The electronic configuration of Rn7s1 belongs to

  • Question 10
    1 / -0

    The alkali metals burn vigorously in oxygen forming oxides. Hence, potassium forms

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