GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Basic
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Applied
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Either A or B
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None of the above
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Detailed explanation-1: -The Burn Test for Cotton Fabric The fastest way for you to tell if something is pure cotton or not would be for you to use the flame of a candle, or a match. Cotton will not melt, nor will it curl away from the flame.
Detailed explanation-2: -Hint: Among the fabrics mentioned, cotton is a plant fiber, wool is an animal fiber, silk is a fiber obtained from silkworms and synthetic fibers like nylon and polyester are long-chain polymers made artificially by chemical reactions in industry.
Detailed explanation-3: -On the basis of their origin, fibres are classified as natural fibres and synthetic fibres. Synthetic fibres can be produced in laboratory and can be cheaper compared to natural fibres but natural fibres are much more comfortable.
Detailed explanation-4: -Rayon is a synthetic fibre manufactured from the cellulose of wood pulp or cotton. They possess the feel and texture as of natural silk. Hence, rayon is also known as artificial silk.