(a) What are covalent bonds? Write the type of bonds present in `N_(2) and CH_(4)` molecules.
(b) Why does carbon form compounds mainly by covalent bonding?
(c) Write the IUPAC names of the following compounds?
(i) `C_(6)H_(6), (ii) C_(3)H_(7)Cl`.

Explanation

(a) For the definition of covalent bond,. The bonds in `N_(2) and CH_(4)` molecules are of covalent nature.

(b)
(c) (i) `underset("Benzene")(C_(6)H_(6)),(ii) underset("1-Chloropropane")(CH_(3)CH_(2)CH_(2)Cl) and underset("2-Chloropropane")(CH_(3)underset(Cl)underset(|)(C)HCH_(3))`