Question

What Happened When Wool Fibre Is
Burn
O It produces a sizzling noise
O It smells like burning hair
Ο
It curls away from the flame
O All the above​

Answer 1

ᴀʟʟ ᴏғ ᴛʜᴇ ᴀʙᴏᴠᴇ ............

Answer 2

Answer:

Explanation:

All of the above is the correct option.

orange-colored sputtering fire that burns but does not melt. To avoid the blaze, it shrinks. It smells strongly of burned feathers or hair. The leftovers are a hollow, dark, irregular bead that crumbles into a fine, dark powder.

If these yarns are made of cotton, they burn without shrinking or melting. The smell of burning yarn is somewhat reminiscent of burning paper. The silk thread burns but does not melt as it pulls away from the flame.

Wool has a fair amount of flame resistance. If lit, it typically burns slowly and might self-extinguish. Modacrylic and glass fibres are almost flame-resistant. These synthetic fibres have flame-retardant qualities because of the way they are made and engineered.

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