Advertisements
Advertisements
प्रश्न
Name the process which can be used to recover salt from an aqueous salt solution.
Advertisements
उत्तर
Evaporation can be used to obtain salt from an aqueous salt solution.
APPEARS IN
संबंधित प्रश्न
The inter-molecular space is maximum in
Define the following term of Matter .
Fill in the blank
Any matter which has a definite _______ but no definite shape is called a _______
Explain why air is used to inflate tyres.
Explain why, osmosis can be considered to be a special kind of diffusion. Classify the following into
(i) osmosis, and (ii) diffusion :
- swelling up of a raisin on keeping in water
- spreading of virus on sneezing
- earthworm dying on coming in contact with common salt
- shrinking of grapes kept in thick sugar syrup
- preserving of pickles in salt
- spreading of smell of cake being baked in the kitchen
- aquatic animals using oxygen dissolved in water during respiration
When extremely small particles X derived from the anther of a flower were suspended in a liquid Y and observed through a microscope, it was found that the particles X were moving throughout the liquid Y in a very zig-zag way. It was also observed that warmer the liquid Y, faster the particles X moved on its surface.
- What could particles X be ?
- What do you think liquid Y is ?
- What is the zig-zag movement of X known as ?
- What is causing the zig-zag movement of particles X ?
- Name the scientist who discovered this phenomenon.
- What does this experiment tell us about the nature of liquid Y?
Which one of the following is not a metalloid ?
What will happen if a saturated solution is :
- heated
- cooled
Which of the following is not an emulsion ?
Name the process by which all the dye can be recovered from black ink.
Fill in the following blanks with suitable words :
A mixture of kerosene and petrol can be separated by .....................
Fill in the following blanks with suitable words :
If a mixture contains iron filings as one of the constituents, it can be separated by using a .......................
How will you separate a mixture containing sand and sugar ?
Describe a method to separate a mixture of common salt and sand.
The technique which is used to separate particles of a solid suspended in a liquid quickly is called :
Why wires cannot be drawn from materials such as stone or wood?
What type of matter glass is?
Which statement is not correct for a mixture
Write a scientific reason.
Lemon sherbat has a sweet, sour and salty taste and it can be poured in a glass.
