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How Will You Separate a Mixture of Iron Filings and Powdered Carbon ? - Science

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प्रश्न

How will you separate a mixture of iron filings and powdered carbon ?

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उत्तर

We can separate a mixture of iron filings and powdered carbon by using a magnet. The principle behind the separation of iron fillings and powdered carbon is the property of iron to get attracted by magnets. When the magnet is brought close to the mixture, iron fillings are attracted by the magnet and get collected on the surface of the magnet. In the process, powdered carbon is left behind as residue.

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अध्याय 2: Is Matter Around Us Pure - Very Short Answers [पृष्ठ १०६]

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लखमीर सिंग Chemistry [English] Class 9
अध्याय 2 Is Matter Around Us Pure
Very Short Answers | Q 42 | पृष्ठ १०६

वीडियो ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्न

The inter-molecular space is maximum in


Which of the following materials fall in the category of a “pure substance”?

  1. Ice
  2. Milk
  3. Iron
  4. Hydrochloric Acid
  5. Calcium oxide
  6. Mercury
  7. Brick
  8. Wood
  9. Air

Name two processes which provide the best evidence for the motion of particles in matter.


The three important metalloids are.............................. and ..........................


Give reason why graphite is used for making elecrode in a dry cell.


Which of the two will scatter light : soap solution or sugar solution ? Why ?


A solution contains 5.6 mL of alcohol mixed with 75 mL of water. Calculate the concentration of this solution.


Fill in the following blank :

Milk is a .................... solution but vinegar is a .................... solution.


Which of the following do not exhibit Tyndall effect ?

Starch solution, Sugar solution, Ink, Salt solution, Copper sulphate solution, Ammonium chloride solution, Fog, Smoke, Car exhausts.


What is a colloid ? Give two examples of colloids (or colloidal solutions)


Which of the following represents the solubility of sugar in water at 20°C ?


The solubility of ammonium chloride in water at various temperatures is given below :

Temperature : 10°C 20°C 40°C 60°C 80°C
Solubility : 24 g 37 g 41 g 55 g 66 g

What mass of ammonium chloride would be needed to make a saturated solution of ammonium chloride in fifty grams of water at 40°C ?


What type of magnet is fitted on a crane to separate scrap iron objects from a heap of waste materials in factories ?


Write a method to separate a mixture of sand and potash alum.


How is cream separated from milk ?


The liquid air has three components X, Y and Z whose boiling points are : –186°C, –183°C and –196°C,
respectively. When liquid air is fed into a tall fractional distillation column from near its bottom and warmed
up slowly :

(a) Which component will be collected from near the bottom of the fraction distillation column ? Why ?

(b) Which component will be collected from the top part of the fractional distillation column ? Why ?

(c) Which component will be collected from the middle part of the fractional distillation column ? Why ?

(d) What could the component X, Y and Z be ?


You want to wear your favourite shirt to a party, but the problem is that it is still wet after a wash. What steps would you take to dry it faster?


Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.

Name a non-metal which exists as a liquid at room temperature.


Give an example of liquid in gas.


Define the term matter.


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