Why are cocoons boiled during the production of silk?

To kill the larvae inside the cocoon

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To remove the dirt and grease

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To store the cocoon for a long time

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To seperate the soft and hard silk

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Solution

The correct options are
A To kill the larvae inside the cocoon
C To store the cocoon for a long time
Silk fibre is obtained from the cocoon of the silk worm. During the processing of silk, the cocoons are boiled to kill the larvae before it comes out from the cocoon.

Once the larvae comes out of the cocoon, we won't be able to get a continuous thread of silk from the cocoon. Stiffling or boiling also helps us to store the cocoons for a longer time.

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Similar questions

Q. During the processing of silk fibres, the cocoons are boiled to kill the larvae.

Choose the correct order of the steps with respect to silkworm rearing.

I. Eggs are incubated under controlled conditions

II. Silk cocoons are boiled

III. Silk fibres are extracted

IV. Egg hatch into larvae

V. Larvae weave a cocoon around themselves

VI. Larvae feed on mulberry leaves

Question 19

Steps for the production of silk are given below in a jumbled order. Arrange them in their proper sequence.

(a) Eggs are warmed to a suitable temperature for the larvae to hatch from eggs.
(b) Fibres are taken out from the cocoon.
(c) After 25 to 30 days, the caterpillars stop eating and start spinning cocoons.
(d) The larvae/caterpillars or silkworms are kept in clean trays along with freshly chopped mulberry leaves.
(e) Female silk moths lay eggs.
(f) Cocoons are kept under the sun or boiled in water.

The process of killing the larvae of silk worms inside their cocoons, with the help of steam, is called as ___.

How do the silk farmers know that when to boil the cocoons and when to get the silk thread off

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