Advertisements
Advertisements
Question
What are the conditions for 'something' to be called 'matter'?
Advertisements
Solution
The main conditions for something to be matter are, it should:
- occupy space and
- have mass
APPEARS IN
RELATED QUESTIONS
A kind of matter which can sublime is
State two characteristics of matter demonstrated by Brownian motion.
Name the scientist who studied the movement of pollen grains suspended in water through a microscope. What is this phenomenon known as?
The best evidence for the existence and movement of particles in liquids was provided by :
Name two solid, two liquid and two gaseous elements at the room temperature.
What are the three groups into which all the elements can be divided ? Name two elements belonging to each group.
State two physical properties on the basis of which metals can be distinguished from non-metals.
Name a metal which has a low melting point.
What are (i) metals (ii) non-metals, and (iii) metalloids ? Give two examples each of metals, non-metals and metalloids.
Which of the following are compounds ?
- CO
- No
- NO
- Co
State whether colloidal solutions are homogeneous or heterogeneous.
Choose the correct answer.
A 15% alcohol solution means :
Define solute.
Define solubility of a substance. How does it vary with temperature ?
State whether the following statement are true or false :
Salt and water can be recovered from an aqueous salt solution by the process of evaporation.
Name the process which is used in milk dairies to separate cream from milk.
How will you separate a mixture of iron filings, chalk powder and common salt ?
Which method is better for recovering sugar from sugar solution : evaporation or crystallisation ? Give reason
for your answer.
How is water purified on a large scale at water works ? Explain with the help of a labelled diagram. Name the substance which is added to kill germs in the drinking water supply ?
Which among the following ______ will get attracted to by magnet?
