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प्रश्न
Classify substances into pure and impure substances in the form of a chart or tabulation.
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उत्तर
संबंधित प्रश्न
Define: Molecule
Mention three gaseous elements and write their molecular formulae
Name: Two substances used to make jewellery.
Give one use of the following substance:
Iron
Give reason: A frying pan is made up of steel but its handle is made up of wood.
Fill in the blank
_________ refers to the number of atoms in the molecule of an element
Give the name of the radical - CO3
Write the names of elements from the following symbol:
Ti
Select the correct answer from the choice in the bracket.
The positively charged particle of an atom.
Give a reason for the following statement :
Brass & bronze are examples of mixtures, while copper sulphate & lead nitrate are examples of compounds.
