Advertisements
Advertisements
प्रश्न
How will you separate a mixture containing saw dust, naphthalene and iron filings?
Advertisements
उत्तर
When a magnet is brought near the mixture containing saw dust naphthalene and iron filings, it attracts the iron filings. Thus iron filings are separated.
The mixture of naphthalene and saw dust are put in a china dish and covered with a perforated asbestos sheet. An inverted funnel is placed over the asbestos sheet.
The open end of the stem of the funnel is closed, using cotton wool. The china dish is heated. The pure vapours of naphthalene solid pass through the holes in the asbestos sheet and condense on the inner side of the funnel. The saw dust is left in the china dish.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Mixtures can be ________ or _______
Differentiate between homogeneous and heterogeneous mixtures with examples.
How will you separate a mixture of cooking oil (groundnut oil) and water ?
Name the components present in the following mixture:
Crude petroleum oil
Give an example of mixtures of elements and compounds.
Give a reason why sublimable and non-sublimable substances can be separated easily, but two sublimable substance cannot.
Name the following:
A physical method of separating iron from an iron-sulfur mixture.
Suggest separation technique(s) one would need to employ to separate the following mixture.
Common salt, water and sand
A mixture of two or more miscible liquids, for which the difference in the boiling points is less than 25 K can be separated by the process called ______.
The salt solution is an example of a heterogeneous mixture.
