Polar covalent, non polar covalent, ionic, hydrogen, peptide in rank of strength

The order of bonds in increasing order of bond strength would be Ionic, peptide, polar covalent, non-polar covalent hydrogen bond.

Ionic bonds are the strongest bonds which are formed by transferring of valence electrons between different atoms. For example, a bond between sodium and chlorine atoms in NaCl.

A peptide bond is a type of covalent bond formed between a carboxylic group of one amino acid and the amino group of another amino acid. It is provided with extra stability through resonance.

A covalent bond is a type of bond which is formed by the sharing of electrons between two atoms.

They bond strength of these bonds is less than that of ionic bonds and more than that of hydrogen bonds.

Hydrogen bonds are weak bonds formed through electrostatic interactions between a proton present in one molecule and an electronegative atom in another molecule.

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