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S-Block Elements Test - 9

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S-Block Elements Test - 9
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  • Question 1
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    Which of the following oxides of potassium is not known?
    Solution

  • Question 2
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    K2CS3 is called potassium
  • Question 3
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    Which of the following is a pearl ash?
  • Question 4
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    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
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    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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