JEE Main levelSingle correct optionDifficulty 2 of 3el180
When sodium palmitate dissolves in water above its critical micelle concentration, the micelles formed have
Ahydrocarbon tails in the interior and carboxylate heads at the surface in contact with water
Bno preferred orientation of the molecules
Csodium ions bonded covalently to the hydrocarbon tails
Dcarboxylate heads in the interior and hydrocarbon tails at the surface
Answer: A
In water the hydrophobic tails avoid the solvent and cluster together in the core. The charged −COO− heads face the water. Grease dissolves in the non-polar core, and the micelle is carried away.