Question

15. Assertion: Carbon forms covalent bonds.
Reason: Carbon can achieve the inert gas electron arrangement only by sharing of
electrons.
(1).​

Answer 1

Explanation:

(1) atomic number of carbon is 6 and electronic configuration is (2,4) and thus,its valency is 4 .

(2) If carbon chooses to lose all 4 electrons to attain electronic configuration of inert gas helium, more energy would be required for each loss of electron.

(3) moreover,C+4 ions that would ultimately form is unstable instead of stable Due to High net charge in small size.

(4) If carbon chooses way of gaining 4 electrons to attain electronic configuration of inert gas neon,then more energy is required as replusive force increases.

(5) moreover,C-4 that will form is. unstable due to high net charge in small size.

nucleus (+6) is unable handle elctrons (- 8)

(6) Carbon forms covalent bond as shell get overlap and extra net charge is also not generated.