Carbon and its Compounds

Class:X

Chemistry

Chapter 4

Carbon and its compounds

1. Covalent bond: A covalent bond is a bond formed by sharing of electrons between atoms. In a covalent bond, the shared pair of electrons belongs to the valence shell of both the atoms.

2. Conditions for formation of covalent bond:

a. The combining atoms should have 4 to 7 electrons in their valence shell.

b. The combining atoms should not lose electrons easily.

c. The combining atoms should gain electrons readily.

d. The difference in electro

negativities of two bonded atoms shouldbe low.