Question

Which of the following statements are wrong?

(a) Wet strength can be increased by sizing the paper with dialdehyde starch

(b) Coloring can be done by water insoluble pigments

(c) Grease proof paper is made from wrapping paper

(d) White water cannot be reused

The question was posed to me in class test.

This question is from Natural Products topic in chapter Natural Products of Chemical Technology

Answer 1

Right choice is (d) White water cannot be reused

Easiest explanation: The statement white water can’t be reused is wrong as white water can be reused to conserve water and additives, to prevent steam pollution, and to obtain maximum recovery of fiber.