Hydrogen bonds are relatively strong intermolecular forces that are important for many of the properties of water, the double helix of DNA, and the secondary structure of proteins. The hydrogen bonds in water are stronger than the intermolecular interactions of all of the following except a. intermolecular forces in CH3CH2CH3 b. intermolecular forces in NH3 c. intermolecular forces in CCl4 d. intermolecular forces in MgO

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