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प्रश्न
Fill in the blank
Chalk powder dissolved in water is an example of a Chalk powder dissolved in water is an example of a _________.
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उत्तर
Chalk powder dissolved in water is an example of a Chalk powder dissolved in water is an example of a suspension.
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संबंधित प्रश्न
Give one example for the following type of mixtures
solid-solid homogenous mixture.
Tick the most appropriate answer
Solutions are
- heterogeneous mixtures.
- compounds
- homogeneous mixtures.
- elements
Classify the following substances into elements and compounds
Mercury, sulphur, sugar, water, sand, gold, carbon, oxygen, alcohol, iron, marble, baking soda.
Give two examples of the following.
Inert gases
Define: Molecule
Define: Formula
Name: Two substances used to make electric wires
Name A substance used as an insulator.
Tick (√) the correct alternative from the choice given for the following statement.
Sulphur and carbon are
Tick (√) the correct alternative from the choice given for the following statement
The hardest naturally occurring substance
Select the correct answer from the choice given below.
An impure substance
Select the correct answer from the choice given below.
A group of atoms of elements
Write the names of elements from the following symbol:
Si
Write the names of elements from the following symbol:
Ir
Explain the difference between Metals and non-metals.
Explain the difference between Atoms and molecules.
There are ______ number of known elements.
Differentiate between elements and compounds.
Match the following.
| Atom | Building block of matter |
| Element | Atoms of different kinds |
| Compound | Atoms of the same kind |
| Molecule | Smallest unit of a substance |
