Advertisements
Advertisements
प्रश्न
Write true or false for each statement. Rewrite the false statement correctly.
Matter cannot exist in different states.
पर्याय
True
False
Advertisements
उत्तर
False.
Matter can exist in different states.
APPEARS IN
संबंधित प्रश्न
The inter-molecular force is maximum in
Fill in the blank
Any matter which has a definite _______ but no definite shape is called a _______
Fill in the blank
Liquids have a definite ______
Honey is more viscous than water. Can you suggest why?
When a crystal of potassium permanganate is placed at the bottom of water in a beaker, the water in the whole beaker turns purple on its own, even without stirring. This is an example of :
Name the property which allows metals to be hammered into thin sheets.
What is the general name of the materials which contain at least two pure substances and show the properties
of their constituents ?
Classify the following into elements and compounds :
- H2O
- He
- Cl2
- CO
- Co
Define a compound. Give two points of evidence to show that sodium chloride is a compound.
Out of a colloid, solution and a suspension :
which one has the smallest particles ?
State whether colloidal solutions are homogeneous or heterogeneous.
State whether the following statement is true or false :
Bread is an example of solid foam.
Which of the following will show Tyndall effect ? Why ?
- Salt solution
- Starch solution
- Milk
- Copper sulphate solution
How would you prepare a saturated solution of sodium chloride in water at 25°C ? What will happen if this solution is cooled to 10°C ?
One of the following liquids will leave behind a residue on heating. This one is :
What difference in the property of two miscible liquids enables their separation by fractional distillation ?
Describe a method to separate a mixture of camphor and sand.
One of the following does not undergo sublimation. This one is :
Gas-solid is ______.
Define the term matter.
