Advertisements
Advertisements
Question
Name the process which can be used to purify an impure sample of copper sulphate.
Advertisements
Solution
An impure sample of copper sulphate can be purified by the process of crystallization.
APPEARS IN
RELATED QUESTIONS
Name the terms for the particles of matter which may or may not have independent existence.
When a crystal of potassium permanganate is placed at the bottom of water in a beaker, the water in the whole beaker turns purple on its own, even without stirring. This is an example of :
What are the three groups into which all the elements can be divided ? Name two elements belonging to each group.
Name a non-metal :
- which is lustrous
- which is required for combustion
- whose one of the allotrophic forms is a good conductor of electricity. Name the allotrope.
- other than carbon which shows allotropy
- which is known to form the largest number of compounds
“Is malleable and ductile” best describes :
What is the name of the clear liquid formed when a solid dissolves in a liquid ?
Define the emulsion. Give one example.
What is the effect of temperature on the solubility of solids in liquids ?
How will you separate a mixture of iron filings, chalk powder and common salt ?
How is water purified on a large scale at water works ? Explain with the help of a labelled diagram. Name the substance which is added to kill germs in the drinking water supply ?
The dyes present in fountain pen ink can be separated by the technique of :
The given mixture contains three constituents A, B and C. The constituent A is a yellow coloured, solid element which dissolves in a liquid D. The constituent B is a blue coloured salt which is insoluble in liquid D but dissolves easily in another liquid E. The constitudent C is a liquid which is used in cooking food and forms a solid fat on hydrogenation.
(a) What do you think could (i) constituent A, and (ii) liquid D be ?
(b) What could (i) constituent B, and (ii) liquid E be ?
(c) What could liquid C be ?
(d) How will you separate the mixture containing A, B and C ?
Asmita went to buy an earthen pot. There she saw many things kept for sale.
How did she identify what she needed?
Which among the following is not a matter?
Intermolecular space is maximum in ______.
Higher the temperature, the higher the kinetic energy of particles.
Evaporation does form bubbles.
Gas-solid is ______.
Examples of foam are ______.
