11th Class Chemistry Chemical Bonding and Molecular Structure Question Bank 11th CBSE Chemistry Chemical Bonding and Molecular Structure

  • question_answer Out of \[MgO,\] and \[CaO,\] which one is more hard and why?

    Answer:

                    \[MgO,\] is harder than \[CaO\]. This is because \[M{{g}^{2+}}\] ions are smaller in size than \[C{{a}^{2+}}\] ions. Hence, lattice energy of \[MgO\] is greater.


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