The hydrophobic effect refers to the tendency of hydrophobic groups in molecules
ID: 494932 • Letter: T
Question
The hydrophobic effect refers to the tendency of hydrophobic groups in molecules to form clusters in aqueous solution (e.g., the formation of micelles by fatty acids). Which of the following provides the most-widely accepted explanation of this phenomenon?
a. Weak interactions between water molecules and nonpolar groups are replaced by very strong interactions between the hydrophobic groups
b. Weak interactions between water molecules and nonpolar groups ar replaced by stronger hydrogen bonding interactions between water molecules.
c. Fewer water molecules are required to solvate the clustered groups compared with the dissociated (non-clustered) state.
d. Clustering of hydrophobic groups helps to restore order to the arrangement of water molecules in the bulk solvent.
Explanation / Answer
option b
The hydrophobic effect can be seen as seggregation of water and the non polar groups which increases the hydroge bonding between the water molecules and thus separates the water and oil(non-polar substances) by minimising the contact between them.
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