Advertisements
Advertisements
Question
Give two examples for the following :
Substances which sublime.
Advertisements
Solution
Naphthalene, camphor, dry ice.
APPEARS IN
RELATED QUESTIONS
Write your observation and conclusion for the following:
When few marbles are put in a glass half-filled with water.
Select the correct alternative
The molecules ____________
Match the following columns
| Column A | Column B | ||
| A. | A molecule is composed of | i. | does not exist free in nature. |
| B. | Ice, water and water vapour | ii. | can vibrate only up to about `10^-10`m from their mean position. |
| C. | An atom | iii. | atoms. |
| D. | Gases | iv. | are the three states of water. |
| E. | The molecules of a solid | v. | occupy space |
If an object is taken to the moon from the earth what will be its mass?
Define Intermodular space.
Define the Atom.
Write true or false for the statement. Rewrite the false statement correctly.
The smallest part of an element capable of independent existence is called an atom.
Match the column.
| Column A | Column B |
| 1. iron and gold | a. molecules are very far apart |
| 2. melting | b. pure substance |
| 3. intermolecular space | c. non-metals |
| 4. compound | d. the space between the molecules |
| 5. gases | e. changes from solid to liquid |
| f. metals |
Identify the odd term out and explain.
Hydrogen, sodium, potassium, carbon
Match the arrangement of atoms in the three states of matter in List I with the correct state in List II.
| List I | List II |
| 1. Arrangement of atoms, very closely packed | A: Solids |
| 2. Interparticle space is maximum | B: Liquids |
| 3. Force of attraction between particles is very weak | C: Gases |
| 4. Movement of particles is about their own position | |
| 5. Particles in the state of matter are slightly compressible and not closely packed. |
