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प्रश्न
Why ionic crystals are hard and brittle?
उत्तर
The ionic compounds are very hard and brittle. In ionic compounds, the ions are rigidly held in a lattice because the positive and negative ions are strongly attracted to each other and difficult to separate. But the brittleness of a compound is now easy to shift the position of atoms or ions in a lattice.
If we apply pressure on the ionic compounds the layers shifts slightly. The same charged ions in the lattice come closer. A repulsive force arises between the same charged ions, due to this repulsion the lattice structure breaks down chemical bonding.
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संबंधित प्रश्न
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(A) 6
(B) 4
(C) 3
(D) 12
Which of the following parameters are correct for triclinic lattice?
(A) α = β = γ = 90° and a = b = c
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