Chemical Bonding - Result Question 126
25. State four major physical properties that can be used to distinguish between covalent and ionic compounds. Mention the distinguishing features in each case.
$(1978,2 M)$
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Solution:
- (i) Melting points: Ionic compounds have higher melting points than covalent compounds.
(ii) Boiling points: Ionic compounds have higher boiling points than covalent compounds.
(iii) Solubility: Ionic compounds have greater solubility in water than a covalent compound.
(iv) Conductivity in aqueous solution: Ionic compounds have greater electrical conductivity in aqueous solution while covalent compounds are usually non-conducting.
BETA
