1. Acetate, cotton, nylon, polyester, acrylic, wool

2. Acetate, nylon, polyester, cotton, wool, acrylic

3. Acetate, cotton, wool, acrylic, polyester, nylon

4. Cotton, acetate, wool, acrylic, polyester, nylon

1. 1-5 grading with grey scale

2. 1-8 grading with grey scale

3. 1-5 grading with blue scale

4. 1-8 grading with blue scale

1. Vat

2. Pigment

3. Reactive

4. None of avobe

1. Caustic soda

2. Bleaching powder

3. Lime

4. Hydrochloric acid

1. Base exchange process

2. Boiling process

3. Sedimentation process

4. None of above