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प्रश्न
State the property of the following substance.
Manganese dioxide, a catalyst which alters the rate of a chemical reaction is black in colour.
पर्याय
Physical
Chemical
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उत्तर
Chemical
संबंधित प्रश्न
Arrange the following substances in increasing order of force of attraction between their particles (keeping the substance having the minimum force of attraction first) : Water, Sugar, Oxygen
What are molecules?
Fill in the blanks:
Any matter which has a definite ______ but no definite shape is called a ______.
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles move about very quickly but do not leave the surface
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles are quite close together
Describe simple experiments to prove that gases have mass.
What is the physical state of water at 0°C.
How the matter is grouped on the basis of physical states?
______ particles are tightly packed into a definite shape.
The composition of a sample of wustite is Fe0.93O1.0· The iron is present in the form of Fe(III) is ______%.
