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प्रश्न
What is a molecule ? Explain with an example.
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उत्तर
Molecule is the smallest particle of a substance (element or compound), which has the properties of that substance. It can exist in a free state.
Example: Oxygen atoms combine and exist in the form of O3 molecules. Solid sulphur has eight sulphur atoms joined together, and exists in the form of S8 molecule.
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संबंधित प्रश्न
Write the molecular formulae of Calcium hydroxide :
Write the molecular formulae of Calcium phosphate :
Fill in the blank
_______ is a triatomic molecule.
‘Atoms of the same element or different from Dalton’s atomic theory by the Modern Atomic Theory.
Give two examples each of –
- Atoms of the same element
- Atoms of different elements combining to form a molecule.
Explain the term ‘atomicity’.
‘Dilute hydrochloric acid is added to sodium hydroxide’. Give a word equation and a molecular equation of the same. Is the equation written, a balanced equation. Give reasons.
State the correct formula of the following from the option given:
Ammonium sulphate
Name the following:
A molecule of a compound containing two oxygen atoms and one nitrogen atom.
State true of false. If false, give the correct statement.
Atoms cannot exist alone. They can only exist as groups called molecules.
What is the fraction of the mass of water due to neutrons?
