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प्रश्न
Assertion: Air is a mixture of elements only.
Reason: Only nitrogen, oxygen and neon gases exist in air.
पर्याय
Both assertion and reason are true and reason is the correct explanation of assertion.
Both assertion and reason are true, but reason is not the correct explanation of assertion
Assertion is true but reason is false.
Assertion is false but reason is true.
उत्तर
Both assertion and reason are true and reason is the correct explanation of assertion.
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संबंधित प्रश्न
Tick the most appropriate answer
Solutions are
- heterogeneous mixtures.
- compounds
- homogeneous mixtures.
- elements
Give one example for the following types of mixtures :
misicible liquids
Name: A form of carbon used as a gem
Fill in the blank
A liquid non-metal is _______.
State what are radicals. Give the names of the radicals –
(a) NO3
(b) OH
(c) SO4
(d) CO3
Select the correct answer to the statement given below:
The chemical name for dinitrogen oxide [N20].
State true of false. If false, give the correct statement.
Two different elements may have similar atoms.
Match the following.
| 1. | Element | Made up of molecules |
| 2. | Compound | Impure substance |
| 3. | Colloid | Settles down on standing |
| 4. | Suspension | Pure substance |
| 5. | Mixture | Made up of atoms |
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
______ is a mixture of gases.
