CBSE Class 9 Answered
(a) Define sublimate.
(b) Where is the cotton plug placed in the sublimation apparatus? What is the use of cotton plug in sublimation?
Asked by Topperlearning User | 26 May, 2016, 11:21: AM
Expert Answer
(a) 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.
Answered by | 26 May, 2016, 01:21: PM
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