BIOMOLECULES AND ENZYMES

Detailed explanation-1: -A: Carbon can form four covalent bonds. Covalent bonds are chemical bonds that form between nonmetals. In a covalent bond, two atoms share a pair of electrons. By forming four covalent bonds, carbon shares four pairs of electrons, thus filling its outer energy level and achieving stability.

Detailed explanation-2: -A carbon atom can bond with four other atoms and is like the four-hole wheel, while an oxygen atom, which can bond only to two, is like the two-hole wheel. Carbon’s ability to form bonds with four other atoms goes back to its number and configuration of electrons.

Detailed explanation-3: -The four covalent bonding positions of the carbon atom can give rise to a wide diversity of compounds with many functions, accounting for the importance of carbon in living things. Carbon contains four electrons in its outer shell. Therefore, it can form four covalent bonds with other atoms or molecules.

Detailed explanation-4: -How many single covalent bonds can carbon form? Because it can form four covalent bonds with other atoms, carbon is able to form four single bonds.