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प्रश्न
Define: Formula
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उत्तर
Formula: Formula is a short way of representing the molecule of an element or a compound
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संबंधित प्रश्न
Give two examples for the following: Metals
Name the substance you will add to speed up sedimentation.
Give one example for the following types of mixtures :
misicible liquids
Name: Two substances used to make electric wires
Answer the following question:
Why are copper and aluminium used to make electric wires?
Indicate whether the following statement is true or false:
All elements are artificially prepared
Tick (√) the correct alternative from the choice given for the following statement.
Sulphur and carbon are
With reference to elements – define the term ‘molecule’. Give two examples each of a monoatomic, diatomic & polyatomic molecule.
Give a reason for the following statement :
Brass & bronze are examples of mixtures, while copper sulphate & lead nitrate are examples of compounds.
Give an example for the elements derived from their Latin names.
