Question

Discuss the method of separating a mixture containing chalk powder, iron filings and naphthalene.

Answer 1

Answer:

Take the remaining mixture of chalk powder and naphthalene and separate the naphthalene from chalk powder the by the process of sublimation. 4) Naphthalene will be deposited on the funnel that is used to separate naphthalene from chalk powder by the process of sublimation .

Answer 2

Explanation:

• The mixture of iron filings, chalk powder and naphthalene are separated using the method employing a magnet and this is followed by the process of sublimation.
• When the magnet is moved over the mixture, iron filings get attracted and separated. Then, by sublimation, chalk powder and naphthalene get separated.
• Naphthalene and chalk powder are heated in this process. On heating, naphthalene is sublimed and over a cold apparatus, its vapours are condensed. As chalk powder is non-volatile, it is left as residue.