Advertisements
Advertisements
प्रश्न
On the basis of composition of matter, milk is considered to be :
विकल्प
a pure substance
an impure substance
an element
a compound
Advertisements
उत्तर
an impure substance
Milk is considered to be an impure substance as it is an emulsion. Emulsion is a colloid in which minute droplets of one liquid are dispersed in another liquid, which is not miscible with it.
APPEARS IN
संबंधित प्रश्न
Liquids have definite volume but do not have definite shape.
Define the following term of Matter .
The best evidence for the existence and movement of particles in liquids was provided by :
What name is given to those elements which are neither good conductors of electricity like copper nor insulators like sulphur ?
Define solvent.
Explain what happens when a beam of light is passed through a colloidal solution.
What is meant by the concentration of a solution ?
What is the difference between colloids and suspensions ?
One of the following represents the solution of solid in a solid. This one is :
Name the process by which common salt is purified.
Which technique can be used to detect and identify traces of poison present in the stomach wash of a person ?
Fill in the following blanks with suitable words :
A mixture of kerosene and petrol can be separated by .....................
Describe a method for separating a mixture of iron filings and sulphur powder other than that by using a magnet.
With the help of a labelled diagram, describe the method of separating ammonium chloride from a mixture of ammonium chloride and common salt. Mention the difference in the properties of ammonium chloride and sodium chloride which has made this separation possible.
What is fractional distillation ? What is the use of fractionating column in fractional distillation ?
Naphthalene can be separated from sand :
The best way to recover sugar from an aqueous sugar solution is :
The property which allows the metals to be hammered into their sheets is ______.
Write a scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
