Advertisements
Advertisements
प्रश्न
How would you separate a mixture of sugar and salt?
Advertisements
उत्तर
We will separate a mixture of sugar and salt by filtration followed by evaporation. In this process, solvent used is alcohol instead of water because of the difference in solubility of salt and sugar in alcohol. Salt is insoluble in alcohol but sugar is soluble in it. The undissolved salt can be obtained by filtration.
The filtrate now has only sugar dissolved in alcohol. On heating, alcohol evaporates and sugar is left behind.
APPEARS IN
संबंधित प्रश्न
Compare the properties of metals and non-metals with respect to
- alleability
- ductility
- electrical conductivity.
Milk is an example of a type of matter called ______.
Define the following:
Heterogeneous mixture
Give reason:
Why do petrol and water form a heterogeneous mixture?
Name the components present in the following mixture:
Brass
Define Miscible liquids
Give reasons for the following:
Naphthalene and camphor cannot be separated by sublimation.
Why do we need to separate different components of a mixture? Give two examples.
Suggest separation technique(s) one would need to employ to separate the following mixture.
Common salt, water and sand
You are given two samples of water labelled as ‘A’ and ‘B’. Sample ‘A’ boils at 100°C and sample ‘B’ boils at 102°C. Which sample of the water will not freeze at 0°C? Comment.
