Advertisements
Advertisements
प्रश्न
What are the characteristics of matter?
Advertisements
उत्तर
The characteristics of matter are:
(i) Matter is made up of tiny particles.
(ii) The particles of matter attract each other.
(iii) The particles of matter have spaces between them.
(iv) The particles of matter are constantly moving.
APPEARS IN
संबंधित प्रश्न
Match the following
| Column A | Column B | ||
| (a) | Molecules | (i) | Water boils |
| (b) | 100° C | (ii) | Evaporation |
| (c) | 0° C | (iii) | Changes from solid to gas |
| (d) | At all temperatures | (iv) | Matter |
| (e) | Camphor | (v) | Water freezes |
Fill in the blank
Any matter which has a definite _______ but no definite shape is called a _______
Name a non-metal which is a good conductor of electricity.
What is the general name of the materials which contain at least two pure substances and show the properties
of their constituents ?
Name a non-metal :
- which is lustrous
- which is required for combustion
- whose one of the allotrophic forms is a good conductor of electricity. Name the allotrope.
- other than carbon which shows allotropy
- which is known to form the largest number of compounds
State whether colloidal solutions are homogeneous or heterogeneous.
Calculate the concentration of a solution which contains 2.5 g of salt dissolved in 50 g of water.
How will you test whether a given solution is a colloidal solution ?
Which of the following represents the solubility of sugar in water at 20°C ?
Name the process by which common salt is obtained from sea-water.
How will you separate a mixture of iron filings, chalk powder and common salt ?
The best way to recover sugar from an aqueous sugar solution is :
Asmita went to buy an earthen pot. There she saw many things kept for sale.
From what substance has the potter made all the things?
Asmita went to buy an earthen pot. There she saw many things kept for sale.
What is the difference between a substance and an object?
State whether true or false. If false, correct the statement.
Oil and water are immiscible with each other.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which exists as a liquid at room temperature.
The most reactive metal is ______.
Solids do not flow.
Evaporation does form bubbles.
Define the term matter.
