Advertisements
Advertisements
प्रश्न
State whether the following statement are true or false :
Salt and water can be recovered from an aqueous salt solution by the process of evaporation.
Advertisements
उत्तर
True. As water can undergo the process of evaporation forming vapours, which can be collected in a separate container and can be easily separated from a salt solution.
APPEARS IN
संबंधित प्रश्न
Define the term matter. What is it composed of?
Liquids have definite shape and definite volume.
Name the property which enables metals to be drawn into wires.
What is meant by saying that metals are sonorous ?
Classify the following as elements or compounds :
Iron, Iron sulphide, Sulphur, Chalk, Washing soda, Sodium, Carbon, Urea
Which of the following is not an element ?
State whether colloidal solutions are homogeneous or heterogeneous.
Fill in the following blank :
A colloid is a ..............mixture and its components can be separated by the technique known as ...............
In what respects does a true solution differ from a colloidal solution ?
Explain what happens when a beam of light is passed through a colloidal solution.
The solubility of ammonium chloride in water at various temperatures is given below :
| Temperature | : | 10°C | 20°C | 40°C | 60°C | 80°C |
| Solubility | : | 24 g | 37 g | 41 g | 55 g | 66 g |
What mass of ammonium chloride would be needed to make a saturated solution of ammonium chloride in fifty grams of water at 40°C ?
What difference in the property of two miscible liquids enables their separation by fractional distillation ?
Fill in the following blanks with suitable words :
A heterogeneous mixture of liquid and solid is conveniently separated by...............
How will you separate a mixture of iron filings and powdered carbon ?
The correct increasing order of the boiling points of liquid oxygen, liquid argon and liquid nitrogen present in liquid air is :
One of the following does not undergo sublimation. This one is :
Asmita went to buy an earthen pot. There she saw many things kept for sale.
What is the difference between a substance and an object?
All the matter made of ______.
A standard sheet of paper is about ______ of atoms thick
The most reactive metal is ______.
