Q.Assertion (A) : Cotton fabrics are dyed with reactive dyes without creating any polluted effluents. Reason (R) : Reactive dye reacts with the fiber molecule by addition or substitution. Select the most appropriate option :
Correct answer: (A) is incorrect but (R) is correct.
Explanation
Reactive dye reacts with the fiber molecule by addition or substitution. Cellulosic (Cotton) fabrics are dyed with reactive dye because they produce bright colour with high degree of wash fastness but they also create high undesirable levels of dissolved solids (Pollutants) and oxygen demand in the effluents.
Reactive dye reacts with the fiber molecule by addition or substitution. Cellulosic (Cotton) fabrics are dyed with reactive dye because they produce bright colour with high degree of wash fastness but they also create high undesirable levels of dissolved solids (Pollutants) and oxygen demand in the effluents.