Advertisements
Advertisements
प्रश्न
Name the process by which all the dye can be recovered from black ink.
Advertisements
उत्तर
The process of evaporation can be used to recover all the dye from black ink.
APPEARS IN
संबंधित प्रश्न
The inter-molecular force is maximum in
Fill in the blank
All matter is made up of tiny particles called ______
What are the conditions for 'something' to be called 'matter'?
Name two processes which provide the best evidence for the motion of particles in matter.
Name a non-metal which is a good conductor of electricity.
What is meant by saying that metals are lustrous ?
Give reason why copper metal is used for making electric wires.
Choose the correct answer.
A 5 per cent sugar solution means that :
Name the different types of solutions. Give one example of each.
Which of the following do not exhibit Tyndall effect ?
Starch solution, Sugar solution, Ink, Salt solution, Copper sulphate solution, Ammonium chloride solution, Fog, Smoke, Car exhausts.
What do you understand by the statement " the solubility of copper sulphate in water at 20°C is 20.7 g" ?
Which one of the following is not a chemical change ?
How will you separate a mixture of common salt, sulphur powder and sand ?
Why wires cannot be drawn from materials such as stone or wood?
Diffentiate between absorption and adsorption.
Stars including Sun are covered in ______.
Which of the following statements are true for pure substances?
(i) Pure substances contain only one kind of particles
(ii) Pure substances may be compounds or mixtures
(iii) Pure substances have the same composition throughout
(iv) Pure substances can be exemplified by all elements other than nickel
The most reactive metal is ______.
The pressure of gases does not depend on the temperature of the gas and the volume it occupies.
Define the term matter.
