Detergents are better than soaps because

Both (a) and (b)

Detergents are better than soaps because 3. both (a) and (b).

Soaps are made from fatty acids, which are long chains of carbon atoms with hydrogen atoms attached. When soap is dissolved in water, the fatty acids form micelles. Micelles are tiny balls of soap molecules with the hydrophobic (water-fearing) parts of the molecules on the inside and the hydrophilic (water-loving) parts of the molecules on the outside.

Hard water contains calcium and magnesium ions. These ions can react with the fatty acids in soap to form insoluble precipitates. This precipitates make soap less effective at cleaning.

Detergents are made from different molecules than soaps. Detergents do not form insoluble precipitates with calcium and magnesium ions. This makes detergents more effective at cleaning in hard water.

Detergents can also be used in acidic solutions, while soaps cannot. This is because the molecules in detergents are not as easily affected by acids as the molecules in soaps.

In summary, detergents are better than soaps because they are less affected by hard water and they can be used in acidic solutions.