Advertisements
Advertisements
प्रश्न
State two physical properties on the basis of which metals can be distinguished from non-metals.
उत्तर
| Properties | Metals | Non-metals |
| Lustre | Lustrous | Non-lustrous |
| Heat and electrical conductivity | Good conductor | Poor conductor |
APPEARS IN
संबंधित प्रश्न
Give one difference between atoms and molecules.
Fill in the following blank with suitable words :
The best evidence that the particles of matter are constantly moving comes from the studies of ................. and ...................
Classify the following into elements and compounds :
- H2O
- He
- Cl2
- CO
- Co
Give reason why copper metal is used for making electric wires.
State one property in which a solution of sugar in water resembles a mixture of sugar and sand, and one property in which it differs from it.
Name a metal which is yellow in colour.
The elements which normally exist in the liquid state are :
How much water should be added to 15 grams of salt to obtain 15 per cent salt solution ?
Classify the following into true solutions and colloidal solutions:
Ink, Salt solution, Starch solution, Blood, Sugar solution
Which of the following is not an emulsion ?
Draw a labelled diagram of the fractional distillation apparatus used for separating a mixture of alcohol and water.
Differentiate between the-two characteristics of matter – ‘mass’ & ‘weight’.
If there is a sudden shower, we take shelter under a roof at the roadside. Even though the rain does not fall on us directly, we get wet to some extent. Why ?
Diffentiate between absorption and adsorption.
Give some examples of the Tyndall effect observed in your surroundings?
The phenomenon of Evaporation takes place at the ______ of a liquid.
Define the term matter.
Define the term matter.
Define the term matter.
