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Define the emulsion. Give one example. - Chemistry (Theory)

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प्रश्न

Define the emulsion. Give one example.

Define emulsion and give an example.

व्याख्या
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उत्तर

An emulsion is a colloid in which minute droplets of one liquid are dispersed in another liquid which is not miscible with it. Examples are milk and butter.

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पाठ 2: Is Matter Around Us Pure - Very Short Answers [पृष्ठ ८०]

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लखमीर सिंह Chemistry [English] Class 9
पाठ 2 Is Matter Around Us Pure
Very Short Answers | Q 34.3 | पृष्ठ ८०

संबंधित प्रश्‍न

Intermolecular force of attraction is maximum in ............ less in .......... and the least in .............


Fill in the blank :

The substances which can flow are called ________


Define the following term  of Matter .


Fill in the blank

Liquids have a definite ______


Name a non-metal which is a good conductor of electricity.


Name a metal which forms amalgams.


Which of the following is not an element ?


There are three substances X, Y and Z. The substance X does not have a fixed melting point or boiling point and it still shows the individual properties of its constituents. The substance Y is a pure substance which occurs in nature as such. The substance Y has a fixed melting point and boiling point but it cannot be broken down into simpler substances by any chemical means. The substance Z is also a pure substance whose properties are entirely different from those of its constituents. The substance Z can, however, be divided by electrolysis into two substances which belong to the same class of substances as Y.

  1. What type of substance could X be ? Name one substance like X.
  2. What type of substance could Y be ? Name one substance like Y.
  3. What type of substance could Z be ? Name one substance like Z.
  4. Which process involves absorption or release of an appreciable amount of energy : formation of substance X or formation of substance Z ?
  5. Name the three groups into which all the substances like Y are divided on the basis of their properties.

Define Foam Give one example.


What is the effect of temperature on the solubility of solids in liquids ?


Fill in the following blanks with suitable words :

Immiscible liquids are separated by using a .....................


How is the impurity of iron present in several substances removed in industries ?


Explain how, impure copper sulphate can be purified by crystallisation.


Which method is better for recovering sugar from sugar solution : evaporation or crystallisation ? Give reason
for your answer.


You are given a mixture of iodine in alcohol called tincture iodine. Which method will you use to recover both, iodine as well as alcohol, from this mixture ?


Select the correct answer from A, B, C, D & E for the statement given below:

An atom or group of atoms _________ having a resultant charge.


What's the solution?

We need to make a sherbet quickly for some guests. But we only have sugar candy in the house.


Write a few lines on the blackboard with a chalk. Now observe the chalk. What changes do you see in the chalk?


Examples of foam are ______.


Define the term matter.


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