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S-Block Element...

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  • Question 1
    4 / -1

    Which of the following oxides of potassium is not known?

  • Question 2
    4 / -1

    K2CS3 is called potassium

  • Question 3
    4 / -1

    Which of the following is a pearl ash?

  • Question 4
    4 / -1

    The alkali metals are low melting. Which of the following alkali metal is expected to melt if the room temperature rises to 30o c ?

  • Question 5
    4 / -1

    The reducing power of a metal depends on various factors. Suggest the factor which makes Li, the strongest reducing agent in aqueous solution.

  • Question 6
    4 / -1

    Which of the following metal hydroxide is the least basic ?

  • Question 7
    4 / -1

    Some of the group - 2 metal halides are covalent and soluble in organic solvents. Among the following metal halides, the one which is soluble in ethanol is ....

  • Question 8
    4 / -1

    The order of decreasing ionisation enthalpy in alkali metal is

  • Question 9
    4 / -1

    Amphoteric hydroxides react with both alkalies and acids. Which of the following Group - 2 metal hydroxides is soluble in sodium hydroxide ?

  • Question 10
    4 / -1

    When sodium is dissolved in liquid ammonia, a solution of deep blue colour is obtained. The colour of the solution is due to ...

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