Advertisements
Advertisements
Question
Define Molecule.
Definition
Advertisements
Solution
A molecule is the smallest part of a compound that exists independently.
shaalaa.com
Composition of Matter
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Under what conditions do solids, liquids and gases change their state.
Give reason Pure substances have fixed melting or boiling point .
Define the following term Element .
Fill in the blank
_______ can flow.
True or false.
If the container in which a gas is collected has an opening, the gas will flow out and spread itself indefinitely.
Write whether the following statement are true or false.
All solids, on heating, first change to the liquid and then to the gaseous state always.
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 |
Write whether the following statement is true or false.
A gas has no free surface.
Match the following
| Column A | Column B |
| (a) Solids | (i) Can flow in all directions |
| (b) Sublimation | (ii) The temperature at which a liquid changes into its gaseous state. |
| (c) Boiling point | (iii) Any number of free surfaces. |
| (d) Gases | (iv) Gaps between particles. |
| (e) Intermolecular space | (v) Changes of state from solid to gas. |
Identify the odd term out and explain.
