Advertisements
Advertisements
प्रश्न
Describe a method for separating a mixture of iron filings and sulphur powder other than that by using a magnet.
Advertisements
उत्तर
The method for separating a mixture of iron filings and sulphur powder, employs the use of carbon disulphide as a solvent followed by filtration and evaporation.
Sulphur dissolves in carbon disulphide, whereas iron does not. So, the solution will contain undissolved iron in it. This can then be filtered using a filter paper, where iron remains as residue and is collected on the filter paper. The filtrate obtained contains sulphur dissolved in it. On evaporating the solvent of the filtrate, we obtain sulphur.
APPEARS IN
संबंधित प्रश्न
Fill in the blank :
The state of matter with definite volume and definite shape is called______
Name the terms for the change of vapour into a liquid.
Write true or false for each statement. Rewrite the false statement correctly.
Matter cannot exist in different states.
Name one solid, one liquid and one gaseous non-metal.
Name a metal which can be easily cut with a knife.
Choose the correct answer.
A 5 per cent sugar solution means that :
Choose the correct answer.
A 15% alcohol solution means :
Explain what happens when a beam of light is passed through a colloidal solution.
9.72 g of potassium chloride dissolves in 30 g of water at 70°C. Calculate the solubility of potassium chloride at that temperature.
What is the difference between colloids and suspensions ?
Name the process by which common salt is purified.
How will you separate a mixture of iron filings and powdered carbon ?
What's the solution?
We need to make a sherbet quickly for some guests. But we only have sugar candy in the house.
______ is not made of matter.
Name the metals that are used in jewellery.
Higher the temperature, the higher the kinetic energy of particles.
Give an example of liquid in gas.
Define the term matter.
