7.Which of the following properties best describes a covalent compound?
A.Conductor of electricity
B.Hard and brittle
C.High melting point
D.Soft and flexible
2.How does ionic bonding take place?
A.Two non-metallic elements of different kinds form strong forces of attraction.
B.Two non-metallic element of the same kind form a strong forces of attraction.
C.A non-metallic element like fluorine transfers an electron to a metallic element like sodium.
D.A metallic element like sodium transfers an electron to a non-metallic element like fluorine.
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