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प्रश्न
Classify the following substances into compounds and mixtures:
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उत्तर
Carbon dioxide, air, water, milk, common, salt, blood, fruit juice, iron sulphide.
Carbon dioxide — (Compound)
air — (Mixture)
water — (Compound)
milk — (Mixture)
common salt — (Compound)
blood — (Mixture)
fruit juice — (Mixture)
iron sulphide — (Compound)
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संबंधित प्रश्न
Define: Elements
Correct the following statement:
CO and Co both represents cobalt.
Give three differences between metals and non-metals.
Define: Formula
Differentiate between the terms –
elements, compounds & mixtures.
Select the correct answer from A, B, C, D & E for the statement given below :
A non-metal that is lustrous.
Elements : Combine to form compounds :: 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 |
Complete the table by writing the symbols of the following elements
| Element | Symbol |
| Aluminum | Al |
| Nickel | |
| Bromine | |
| Helium | |
| Magnesium |
Elements contain the ______of the same kind.
