Advertisements
Advertisements
Question
How will you separate a mixture containing saw dust, naphthalene and iron filings?
Advertisements
Solution
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
RELATED QUESTIONS
Select the correct alternative from the choices given for the following statement:
Example of a homogeneous mixture is
State three reasons why you think air is a mixture and water is a compound.
Define the following:
Pure substance
Name the components present in the following mixture:
Bronze
Write “true” or “false” for the following statement
Steel is an alloy of iron and aluminum.
Tick (√) the correct alternative from the choice given for the following statement:
A set of the mixture is
Differentiate between homogeneous and heterogeneous mixtures with suitable examples.
Differentiate between a homogenous and a heterogeneous mixture with one example of each in the (a) solid-solid (b) solid-liquid If (c) liquid-liquid state of the mixture.
Name the process associated with the following
Settling of sand when a mixture of sand and water is left undisturbed for some time.
You are provided with a mixture containing sand, iron filings, ammonium chloride and sodium chloride. Describe the procedures you would use to separate these constituents from the mixture?
