Question

Q13 Neena took some NH4cL in a china dish & put an inverted funnel with a cotton
plug on its stem. She then heated it slowly. What would she observe?
(0) Name & define the phenomenon involved?
(ii) Name any 2 other substances which show similar observations.​

Answer 1

YOUR ANSWER :-

PROCESS INVOVED - SUBLIMATION

IT IS A SEPARATION TECHNIQUE USED TO SEPARATE THE MIXTURE CONTAINING A VOLATILE SUBLIMABLE COMPONENT FROM A NON SUBLIMABLE IMPURITY

ALSO ,SUBLIMATION IS THE CHANGE OF STATE FROM SOLID DIRECTLY INTO GAS OR VICE VERSA.

2 SUBSTANCES ARE:-
—IODINE
—CAMPHOR

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