Advertisements
Advertisements
प्रश्न
One of the following does not undergo sublimation. This one is :
विकल्प
camphor
dry ice
silica
iodine
Advertisements
उत्तर
silica
Silica does not sublime on heating.
APPEARS IN
संबंधित प्रश्न
Name the terms for the change of vapour into a liquid.
Define the following term of Atom .
All kinds of matter
Name one element, one compound and one mixture.
Fill in the following blanks with suitable words :
An element is made up of only one kind of ........
What are the two types of pure substances? Give one example of each type.
Name a metal which is yellow in colour.
Which of the following is not an element ?
Which of the following are compounds ?
- CO
- No
- NO
- Co
How will you test whether a given solution is a colloidal solution ?
Classify the following into solutions, suspensions and colloids :
Soda-water, Milk, Brine, Blood, Ink, Smoke in air, Chalk water mixture, Milk of Magnesia, Shaving cream, Muddy river water.
State whether the following statement are true or false :
Alcohol can be separated from a mixture of alcohol and water by a separating funnel.
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 of common salt, sulphur powder and sand ?
With the help of a labelled diagram, describe the method of separating ammonium chloride from a mixture of ammonium chloride and common salt. Mention the difference in the properties of ammonium chloride and sodium chloride which has made this separation possible.
Differentiate between the-two characteristics of matter – ‘mass’ & ‘weight’.
What's the solution?
We need to rub salt on a corncob, but only salt crystals are available.
Matter is made up of ______.
Diffentiate between absorption and adsorption.
Celsius scale is a scale of temperature in which zero represents the melting point of ice and 100 represents the boiling point of water.
