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प्रश्न
Define: Molecule
उत्तर
Molecule: A molecule can be defined as the smallest unit of an element or a compound which exhibits all the properties of that element or compound and has an independent existence. They are divisible into atoms.
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संबंधित प्रश्न
Give one example for the following type of mixtures
solid-solid homogenous mixture.
Write true or false
All pure substances have characteristic melting and boiling points.
Why is it necessary to separate the constituents of a mixture.
Name: an Inert Gas
State the number of atoms of each element, present in \[\ce{HNO3}\].
Also name the compound.
Match the Columns:
| Column A | Column B | ||
| (a) | Metals | (i) | Non-Reactive |
| (b) | Molecules | (ii) | Brittle |
| (c) | Non-Metals | (iii) | Lustrous |
| (d) | Noble Gases | (iv) | Smallest unit of Compound |
Tick (√) the correct alternative from the choice given for the following statement.
Atoms of different kinds combine to form molecules of
Write the names of elements from the following symbol:
Zn
Represent with the help of a simple chart how matter is classified into pure or impure substances & further into elements, compounds & mixtures, with elements further segmented.
What are elements? What are they made of?
