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A Carpenter Wants to Separate Iron Nails from Saw-dust. Which Method of Separation Should He Choose ?

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प्रश्न

A carpenter wants to separate iron nails from saw-dust. Which method of separation should he choose ?

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उत्तर

Iron nails are attracted by magnet. Thus, they can separated from saw dust using magnetic separation.

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अध्याय 2: Is Matter Around Us Pure - Very Short Answers [पृष्ठ १०५]

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लखमीर सिंग Chemistry Part 2 [English] Class 9
अध्याय 2 Is Matter Around Us Pure
Very Short Answers | Q 15 | पृष्ठ १०५

वीडियो ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्न

Fill in the blank

Any matter which has a definite _______ but no definite shape is called a _______


Honey is more viscous than water. Can you suggest why?


Define matter. Give four examples of matter.


When extremely small particles X derived from the anther of a flower were suspended in a liquid Y and observed through a microscope, it was found that the particles X were moving throughout the liquid Y in a very zig-zag way. It was also observed that warmer the liquid Y, faster the particles X moved on its surface.

  1. What could particles X be ?
  2. What do you think liquid Y is ?
  3. What is the zig-zag movement of X known as ?
  4. What is causing the zig-zag movement of particles X ?
  5. Name the scientist who discovered this phenomenon.
  6. What does this experiment tell us about the nature of liquid Y?

Which of the following is a mixture ?

Salt, Air, Water, Alum, Sugar


Name a metal which is soft and a non-metal which is hard.


What is the general name of the materials which contain at least two pure substances and show the properties
of their constituents ?


One of the following substances is neither a good conductor of electricity nor an insulator. This substance is :


Explain what happens when a beam of light is passed through a colloidal solution.


One of the following liquids will leave behind a residue on heating. This one is :


One of the following represents the solution of solid in a solid. This one is :


Tincture of iodine has antiseptic properties. This solution is made by dissolving :


What is the general name of the process by which tea-leaves are separated from prepared tea ?


Describe a method to separate a mixture of common salt and sand.


How will you separate iron pins from sand ?


The dyes present in fountain pen ink can be separated by the technique of :


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.


Which of the following statements are true for pure substances?

(i) Pure substances contain only one kind of particles

(ii) Pure substances may be compounds or mixtures

(iii) Pure substances have the same composition throughout

(iv) Pure substances can be exemplified by all elements other than nickel


Define the term matter.


Define the term matter.


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