Q4 W2

Question 1

A spot or localized discoloration left on the fabric by the foreign substance

Answer 1

Stain

Question 2

Animal stains:

Answer 2

Blood, milk, wine, meat

Question 3

Vegetable stains:

Answer 3

Tea, coffee, tomato, gravy

Question 4

Grease stains:

Answer 4

Butter, ghee, curry, oil

Question 5

Mineral stains:

Answer 5

Ink, rust, medicine

Question 6

Paints, lipstick, chewing gum, etc..

Answer 6

Built-up stains

Question 7

Combination of absorbed stains and built up stains blood

Answer 7

Compound stains

Question 8

Hydrocarbons, petroleum based alcohol, chlorinated hydrocarbons — benzene, kerosene, acetone, glycerin, ethyl alcohol, turpentine, carbon tetra chloride

Answer 8

Solvents

Question 9

Oxidizing bleach, reducing agents — Hydrogen peroxide, oxalic, acid, potassium, permanganate, sodium bisulphate.

Answer 9

Bleaches

Question 10

Fatty acids — coconut oil, oleic acid.

Answer 10

Fats/oils

Question 11

An ionic and-ionic soaps, fatty acid, alcohol, sulphatesnates, fatty amine oxides

Answer 11

Emulsifiers

Question 12

Organic, in-organic — 1% oxalic acid, 30% formic acid, white vinegar, curd, sour milk, diluted hydrochloric acid

Answer 12

Acids

Question 13

Ammonium hydroxide, sodium bicarbonate.

Answer 13

Alkalis

Question 14

Enzymes soaps

Answer 14

Enzymes

Question 15

Talc, cornstarch, french chalk

Answer 15

Absorbents