Advertisements
Advertisements
प्रश्न
How will you separate common salt, sand and iron filings from their mixture ?
उत्तर
We will separate common salt, sand and iron filings from their mixture by using a magnet, filtration and evaporation.
First, a magnet is moved over a mixture of iron filings, sand and common salt. In the process, iron filings are separated by the magnet. After that, sand and common salt are mixed in water. While salt dissolves in water, sand does not. So, sand is separated by filtration. On heating the filtrate, all the water evaporates from the mixture and salt crystals are left behind.
APPEARS IN
संबंधित प्रश्न
What is a mixture ? Give two example of mixtures.
Many indigestion mixtures are suspensions. What do the instructions written on the bottle of an indigestion mixture tell us before taking the mixture, and why ?
Which method can be used to separate a mixture of naphthalene and common salt ?
Name one pair of substances whose mixture can be separated by fractional distillation.
Give an example of mixtures of two compounds
With reference to the mixture of iron and sulphur, state the main characteristics of the mixture.
Name the following:
The component of the soluble solid-liquid mixture, which is lost to the atmosphere on heating.
Give reasons for the following:
Naphthalene and camphor cannot be separated by sublimation.
Suggest separation technique(s) one would need to employ to separate the following mixture.
Kerosene oil, water and salt
The ‘sea-water’ can be classified as a homogeneous as well as a heterogeneous mixture. Comment.
