11th Class Chemistry Alkali Metals Question Bank 11th CBSE Chemistry Alkali Metals

  • question_answer \[M{{g}^{2+}}\] ion is more highly hydrated than \[N{{a}^{+}}\] ion.

    Answer:

                    The positive charge density around \[M{{g}^{2+}}\] ion is more than around \[N{{a}^{+}}\] ion due to its smaller size and more number of positive charges. Therefore, \[M{{g}^{2+}}\] ion has a greater tendency to attract surrounding \[{{H}_{2}}O\]  molecules from water than \[N{{a}^{+}}\]ion. In other words, it is more highly hydrated than \[N{{a}^{+}}\] ion.


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