Question

Detergent are used for cleaning the clothes because they​

Answer 1

Answer:

b) increase surface tension

Answer 2

Answer:

Detergents are better for cleaning clothes due to the formation of soluble products.

Explanation:

• Detergents are classified in groups as amphoteric, anionic, or cationic.
• Hydrophilic is the water-attracting group at one end of the detergent molecule.
• Hydrophobic is a water-repelling group at another end of the molecule.

As, when soaps are used for cleaning clothes than they react with calcium and magnesium ions present in hard water to form precipitate-like compounds.

But, the detergent molecules either form colloidal or soluble products with the ions present in the hard water. This soluble product is easy to wash away when rinsed with clean water.