Question

Which compound will have maximum repulsion with H20.
(((A) C6H6
(B) C2H5OH
(C) CH3 - CH2 - CH2 - OH
(D) CH3 - 0 -CH3
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Answer 1

Answer:A is the correct answer

Explanation:

Every aromatic compound will show repulsion with water. Benzene is stable and not attracted to a weak nucleophile.

Answer 2

The compound that will have maximum repulsion with water, among the given options, is Benzene.

• Hydrophobic substances are the ones that repel water.
• They are generally nonpolar, and so immiscible with polar solvents like water.
• Presence of polar groups impart a molecule some hydrophilicity, that is attraction towards water molecule.
• Polar groups include groups like amines and hydroxyl moiety, and some charged species are also hydrophilic.
• In the given options, B, and C, that is ethanol and n-propanol, both possess polar hydroxyl groups. So they have some affinity to water.
• Option D, Methoxy methane also has an oxygen atom that can form a hydrogen bond with water molecules because of its electronegativity.
• The compound benzene has no polar groups and is hydrophobic in nature. So it repels water molecules.