Advertisements
Advertisements
प्रश्न
Which of the following mixture cannot be separated by using water as the solvent ?
विकल्प
copper sulphate and sand
sand and potash alum
sand and sulphur
sugar and sand
Advertisements
उत्तर
sand and sulphur
Mixture of sand and sulphur cannot be separated by using water as a solvent because both are insoluble in water.
APPEARS IN
संबंधित प्रश्न
Gases have definite volume but no definite shape.
An inflated balloon full of air goes down slowly (becomes smaller and smaller slowly) even though the knot at the mouth of the balloon is airtight. And after a week all the air has escaped from the balloon. Explain how the air particles got out of the balloon.
Name a non-metal which is a good conductor of electricity.
What are pure substances ? Give two examples of pure substances.
What are the two types of pure substances? Give one example of each type.
State any two properties for believing that aluminium is a metal.
Which of the following is a sol ?
Shaving cream, Milk, Fog, Soap solution, Hairspray
Define Sol and give one example.
What is a colloid ? Give two examples of colloids (or colloidal solutions)
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 ?
How is scrap iron separated from a heap of waste materials in factories?
Describe the method of separating a mixture containing common salt, sand and ammonium chloride.
The boiling point of liquid argon is :
Select the correct answer from A, B, C, D & E for the statement given below:
An atom or group of atoms _________ having a resultant charge.
Name the metals that are used in jewellery.
You want to wear your favourite shirt to a party, but the problem is that it is still wet after a wash. What steps would you take to dry it faster?
The physical state of water at 373 K is ______.
The fluidity of solids: ______.
Define the term matter.
