Advertisements
Advertisements
प्रश्न
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.
पर्याय
True
False
Advertisements
उत्तर
True
APPEARS IN
संबंधित प्रश्न
Under what conditions do solids, liquids and gases change their state.
Fill in the blank
The temperature at which a liquid boils is called the _________point of that liquids
Which of the following is a property of the liquids?
Write true or false for the following statement
The inter-molecular forces are effective at all distances between the two molecules.
Fill in the blank
All the molecules of a substance are .............
Select the correct alternative
The inter-molecular forces are strongest in
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.
Identify the odd term out and explain.
Hydrogen, sodium, potassium, carbon
Write a scientific reason.
Hydrogen is combustible, oxygen helps combustion, but water helps to extinguish fire.
