Question

describe the use of cotton plug in the stem of funnel.​

Answer 1

Answer:

The solid substance that is obtained by cooling the vapours of the volatile substance obtained after heating is known as 'sublimate'.

(b) A loose cotton plug is put in the upper, open end of the funnel. It is put to prevent the vapours of the volatile substance from escaping into the atmosphere.

Answer 2

Answer:

A cotton plug is inserted in the upper end of the funnel during the process of sublimation ,in which the solid turns into gas without turning into liquid,to not let the vapour escape from top.

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