<prompt> Which of the following is a weak bond -Covalent bondPeptide bondDisulphide bondHydrophobic interactions  <response>: Ans. is d i.e., Hydrophobic interactions o Strongest bond - Covalento Weakest bond - Van der walls forcesMoleucular interactionso There are two types of interactions between molecules that stabilize molecular structures :-i Covalent bonds, e.g. peptide bonds and disulphide bonds, iiii Non-covalent bonds.Molecular interaction Non-covalent bonds Electrostatic interactions salt bridges or ionic bonds Hydrogen bonds Hydrophobic interactions Van Der Waal forcesCovalent bondsStrength of various interactions in decreasing orderCovalent strongest Electrostatic ionic or salt linkage hydrogen hydrophobic Van der waals weakest 