Advertisements
Advertisements
प्रश्न
State any two properties for believing that aluminium is a metal.
Advertisements
उत्तर
Aluminium is lustrous and malleable, so it is a metal.
APPEARS IN
संबंधित प्रश्न
Name the processes involved in two cases.
Fill in the blank :
The substances which can flow are called ________
Name the terms for the particles of matter which may or may not have independent existence.
What is meant by saying that metals are malleable and ductile?
Explain why, hydrogen and oxygen are considered elements whereas water is not considered an element.
There is a large group of materials P which can be divided into three groups Q, R and S on the basis of their properties. The substances belonging to group Q can be solids, liquids or gases. The solids belonging to group Q are usually electrical insulators. Most of the substances of group R are solids which are good conductors of electricity. The substances belonging to group S are neither insulators like Q nor good conductors like R. The properties of S are intermediate between those of Q and R.
- What could the group of materials P be ?
- Name the substances Q. Give two examples of such substances.
- Name the substances R. Write two examples of such substances.
- Name the substances S. Give two examples of such substances.
- Out of Q, R and S, which substances are malleable and ductile ?
State whether the following statement is true or false :
Sponge is an example of solid sol.
What is meant by the concentration of a solution ?
Name the property of one of the constituents which can be used to separate a mixture of salt and iodine
What difference in the property of two miscible liquids enables their separation by fractional distillation ?
What is the general name of the process by which tea-leaves are separated from prepared tea ?
Name the process by which common salt is obtained from sea-water.
Describe a method to separate a mixture of common salt and sand.
How will you separate water from mustard oil ?
The correct increasing order of the boiling points of liquid oxygen, liquid argon and liquid nitrogen present in liquid air is :
You are given a mixture of iodine in alcohol called tincture iodine. Which method will you use to recover both, iodine as well as alcohol, from this mixture ?
Explain the meaning of the term ‘matter’.
Differentiate between the-two characteristics of matter – ‘mass’ & ‘weight’.
Define the term matter.
Define the term matter.
