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Human Eye and Colourful World
Covalent compounds exhibit the following properties:
(i) These have low melting points and boiling points.
(ii) These do not conduct electricity either in the solid state or in molten state or in the solution form. They are non-electrolytes.
(iii) These are readily soluble in non-polar solvents like benzene, carbon tetrachloride etc. but do not dissolve in polar solvents like water.
(iv) The covalent bond is directional in nature.
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Which of the following combination is most likely to form covalent bond/s? Explain.
(i) Sodium and hydrogen (ii) Magnesium and oxygen
(iii) Chlorine and oxygen (iv) Calcium and bromine.
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