4:46:00 AM
Comparison
between Ionic compounds and Covalent compounds:
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Ionic compounds
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Covalent compounds
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1.
As the ions in ionic compounds are held by the
strong electrostatic force of attraction they :
ü
Exist in solid state
ü
Are non volatile
ü
Have high boiling and melting points
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1.
In these compounds the molecules are have weak
Vander waal’s forces so they:
ü Exist as soft
solids, liquids and gases.
ü Are non- volatile
ü Have low
boiling and melting points.
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2.
These compounds undergo dissociation and become
free in their molten or aqueous solution form hence they conduct electricity.
ü They are non
conductors in solid state because the ions are not free.
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2.
Polar covalent compounds undergo ionization in
their aqueous solutions and produce free ions so they conduct electricity in
aqueous solutions.
ü Non-polar
compounds do not undergo ionization so they are non-conductors. e.g. CCl4
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3.
These can be electrolysed in their molten state or
aqueous solutions.
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3.
Polar covalent compounds can be electrolysed in
their aqueous solutions.
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4.
Soluble in water.
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4.
Polar compounds are soluble in polar solvents like
water.
Non polar compounds are soluble in non
polar solvents like Benzene
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5.
Reactions between ionic compounds take place
rapidly in their solutions since they produce free ions easily.
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5.
Covalent compounds undergo slow reactions because
they have to break the bonds and form new bonds.
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