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Chemistry CBSE Live product
Class 10 (2025-26)
Metals and non-metals
Annual Revision V - Metals and non-metals
5.
Properties of ionic compounds
Question:
2
m.
Select the right option to answer the question:
Give reasons:
i.
Why are ionic compounds generally hard but brittle?
Ionic compounds are hard but brittle because
they have weak intermolecular forces
shifting of ion layers causes repulsion between like charges
ions share electrons with each other
they contain free electrons
.
ii.
Why do ionic compounds have high melting points?
Ionic compounds have high melting points because
ions are large in size
strong electrostatic forces exist between oppositely charged ions
they are insoluble in water
they contain covalent bonds
.
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