Lakhmir Singh Solutions Class 10 Chemistry Solutions for Exercise in Chapter 3 - Chapter 3 Metals and Non Metals

Question 110 Exercise

(a) Giving one example each, state what are (i) ionic compounds, and (ii) covalent compounds.

(b) Compare the properties of ionic compounds and covalent compounds.


(a) (i)The compounds which are formed by transferring electron from one atom to another forming ionic bond are called ionic compounds.

Example: Sodium chloride, NaCl

(ii) The compounds which are formed by sharing of electrons from one atom to another forming covalent bonds are called covalent compounds.

Example: Methane, CH4


Ionic Compounds Covalent Compounds
Ionic compounds are crystalline solids. Covalent compounds are usually liquids and gases.
Ionic compounds have high melting and boiling points. Covalent compounds have low melting and boiling points.
Ionic compounds are usually soluble in water. Covalent compounds are usually insoluble in water.

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