Advertisements
Advertisements
प्रश्न
Write whether the following statement is true or false.
There is no difference between evaporation and boiling.
विकल्प
True
False
Advertisements
उत्तर
False
APPEARS IN
संबंधित प्रश्न
Write true or false for each statement. Rewrite the false statement correctly.
The smallest part of an element capable of independent existence is called an atom.
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 |
Describe a simple experiment to illustrate that molecules are not at rest, but they constantly move.
What are fluids? Give two examples.
Give reason :
When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar.
Fill in the blank
Molecules in a ............ are packed very closely.
Identify the odd term out and explain.
Write scientific reason.
Lemon sharbat has a sweet, sour and salty taste and it can be poured in a glass.
Write scientific reason.
Lemon sherbat has a sweet, sour and salty taste and it can be poured into a glass.
Write scientific reason.
Lemon sherbat has a sweet, sour and salty taste and it can be poured in a glass.
