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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
"A substance has a definite shape as well as a definite volume." Which physical state is represented by this statement?
Fill in the blanks:
The physical state of a substance, which has neither fixed volume nor fixed shape is a ______.
Write whether the following statement is true or false:
If the container in which a gas is collected has an opening, the gas will flow out and spread itself indefinitely
To identify materials of common use
Procedure – Just move around in your house – in the drawing room, sitting room, bedroom, kitchen, bathroom etc. Identify the things and All in the blanks in the table given below
| No. | Place | Name of the thing | Material used for making the thing |
| 1 | Study room | ||
| 2 | Drawing room | ||
| 3 | Kitchen | ||
| 4 | bathroom | ||
| 5 | Any other place |
State the property of the following substance.
Chlorine gas has a – strong irritating odor.
State the property of the following substance.
Sodium nitrate is soluble in water, but calcium carbonate is not.
State the property of the following substance.
Magnesium reacts with dilute hydrochloric acid, liberating hydrogen gas.
Complete the given analogy.
Large Inter-particle space: Gas:: ______ :solid.
A rubber ball changes its shape on pressing. Can it be called a solid?
Give two examples of diffusion.
