GENERAL KNOWLEDGE

Detailed explanation-1: -Covalent compounds are formed when two nonmetals react with each other. Since hydrogen is a nonmetal, binary compounds containing hydrogen are also usually covalent compounds.

Detailed explanation-2: -In general, covalent bonds form between nonmetals, ionic bonds form between metals and nonmetals, and metallic bonds form between metals.

Detailed explanation-3: -Covalent bonding is a form of chemical bonding between two non metallic atoms which is characterized by the sharing of pairs of electrons between atoms and other covalent bonds.

Detailed explanation-4: -Metals simply do not hold on to electrons with enough strength to form much in the way of covalent bonds. For a covalent bond to form, we need two atoms that both attract electrons with high electron affinity. Hence, the great majority of covalent bonds will be formed between two non-metals.

Detailed explanation-5: -Covalent or molecular compounds contain atoms held together by covalent bonds. These bonds form when the atoms share electrons because they have similar electronegativity values.