1.

Consider the following statements : The purpose of adding sodium sulphate and sodium silicate to washing powder is - 1. To keep washing powder dry 2. To maintain the alkalinity of the powder which of these statements is/are correct ? (a) Only 1 (b) Only 2 (c) Both 1 and 2 (d) Neither 1 nor 2

Answer»

The correct option is: (a) Only 1

Explanation:

Sodium sulphate and sodium silicate are added to keep the washing powder dry.

Sodium triphosphate or sodium carbonate is added to washing powder to maintain the alkalinity. 



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