Detergent and Soap

Which one of the following is used in the manufacture of soaps?

Soap removes grease by –

What is detergent?

Detergents used for cleaning clothes are:

Assertion (A): Detergent easily removes oil and dirt from dirty garments. Reason (R): Detergent increases the surface tension of water. Code:

Assertion (A): Synthetic detergents can make more lather in hard water. Reason (R): Synthetic detergents form soluble calcium and magnesium salts with hard water. Code:

Consider the following statements? Sodium silicate and sodium sulphate are mixed as detergents in washing powders so that: 1. To maintain dryness of the powder. 2. To maintain the basicity of powder. Which statement is correct?