Advertisements
Advertisements
प्रश्न
How would you separate iodine from a mixture of iodine and common salt ?
Advertisements
उत्तर
We would separate iodine from a mixture of iodine and common salt by the process of sublimation. In the process, iodine sublimes on heating, whereas salt does not. Salt has a melting point higher than that of iodine. Therefore, a mixture of iodine and sodium chloride can be separated by using a sublimation apparatus, where solid iodine is collected by condensation of the mixture.
APPEARS IN
संबंधित प्रश्न
Intermolecular space is maximum in .......... less in ............ and the least in .........
Select the correct alternative
The molecules can move freely anywhere in
- gases
- liquids
- solids
- none of the above
Liquids have definite volume but do not have definite shape.
Define the following term of Atom .
Which one is a kind of matter:
Name one element, one compound and one mixture.
You are given two liquids, one a solution and the other a compound. How will you distinguish the solution from the compound ?
Draw a flow-chart for the schematic representation of different types of matter.
In the following set of substances, one item does not belong to the set. Select this item and explain why it does not belong to the set :
Hydrogen, Oxygen, Steam, Chlorine
A solution contains 5.6 mL of alcohol mixed with 75 mL of water. Calculate the concentration of this solution.
Which of the following are chemical changes and which physical ? Give reason.
- a glass bottle breaking
- coal burning in air
- making a cake
- wool being knitted into a sweater
What difference in the properties of oil and water enable their separation by a separating funnel ?
How will you separate a mixture of iron filings, chalk powder and common salt ?
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.
What's the solution?
We need to make a sherbet quickly for some guests. But we only have sugar candy in the house.
Why wires cannot be drawn from materials such as stone or wood?
Liquids cannot be compressed and they have fixed volume.
The pressure of gases does not depend on the temperature of the gas and the volume it occupies.
Define the term matter.
