Advertisements
Advertisements
प्रश्न
Which one of the following statements is not true?
- the molecules in a solid vibrate about a fixed position
- the molecules in a liquid are arranged in a regular pattern
- the molecules in a gas exert negligibly small forces on each other, except during collisions
- the molecules of a gas occupy all the space available
उत्तर
The molecules in a liquid are arranged in regular pattern. The above answer is not true because in liquids the molecules are not arranged in regular pattern. In liquids the molecules are loosely arranged.
APPEARS IN
संबंधित प्रश्न
Write whether the following statement is true or false.
All solids, on heating, first change to the liquid and then to the gaseous state always.
What is mass ?
Give reasons for the following:
Solids have a definite shape and are highly rigid while gases have to definite shape and are least rigid.
Give a reason why –
Solids have a definite volume & a definite shape.
Match the characteristics of the three states of matter in List I with their correct answer from List II.
| List I | List II |
| 1. Have no definite shape, volume or free surface | A: Solids only |
| 2. Are highly compressible and least rigid | B: Liquids only |
| 3. Have a definite volume, no definite shape and are slightly diffusable | C: Gases only |
| 4. Are not compressible and have no diffusability | D: Liquids and gases only |
| 5. Have mass and occupy space | E: Solids and gases only |
| F: Solids, liquids and gases |
Fill in the blank:
The three states of matter are classified on the basis of differences of certain _________.
Complete the statement by filling the blank with the correct word given below.
In naphthalene, the inter-particle attraction is _______.
200 ml of water is poured into a bowl of 400 ml capacity. The volume of water will be ______.
Match the following.
| Property | Example |
| Breaks easily (Brittle) | Metal pan |
| Bends readily | Rubber band |
| Can be stretched easily | Cotton wool |
| Gets compressed easily | Mud pot |
| Gets heated readily | Plastic wire |
In a glass containing some water, tamarind juice and sugar are added and stirred well. Is this a mixture? Can you tell why? Will this solution be sweet or sour or both sweet and sour?
