Chemistry
Answer
(a) Chemical Bond — A chemical bond may be defined as the force of attraction between any two atoms, in a molecule, to maintain stability.
(b) Electrovalent (or ionic) Bond — The chemical bond formed between two atoms by transfer of one or more electrons from the atom of a metallic (electropositive) element to an atom of a non-metallic (electronegative) element is called an electrovalent (or ionic) bond.
(c) Covalent Bond — The chemical bond that is formed between two combining atoms by mutual sharing of one or more pair of electrons is called a covalent bond.
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