Advertisements
Advertisements
प्रश्न
How will you separate a mixture of cooking oil (groundnut oil) and water ?
Advertisements
उत्तर
We will separate cooking oil and water by using a separating funnel as cooking oil and water are two immiscible liquids. Due to the difference in the densities of the two liquids, cooking oil, being lighter than water, floats over it and forms the upper layer, whereas water forms the lower layer. On opening the stop-cock, the lower layer of water comes out first and is collected in a beaker. Cooking oil is left behind in the separating funnel.
APPEARS IN
संबंधित प्रश्न
What is meant by (i) homogeneous mixtures, and (ii) heterogeneous mixtures ? Give two examples of homogeneous mixtures and two of heterogenous mixtures.
Name the solvent you would use to separate a mixture of sulphur and carbon.
Define the following:
Pure substance
Write “true” or “false” for the following statement
A pure substance consists of only one kind of atom or molecule.
Give an example of mixtures of elements and compounds.
State the technique involved in separating the following:
Iodine crystals and potassium chloride
State what information is provided by the formula of calcium hydroxide – Ca(OH)2
How will you separate a mixture containing saw dust, naphthalene and iron filings?
Give an example of each mixture having the following characteristics. Suggest a suitable method to separate the components of this mixture
Two volatile components with appreciable differences in boiling points.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
