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प्रश्न
What is a molecule ? Explain with an example.
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 formula of sulphuric acid.
The valency of sodium is one, write the molecular formula for sodium sulphate ?
State the term
A group of atoms that react as a single unit ______.
Which contains more molecules, 10 g of sulphur dioxide (SO2) or 10 g of oxygen (O2) ?
(Atomic masses : S = 32 u ; O = 16 u)
What is the number of electrons after the transfer of electrons in magnesium and sulphur atoms.
‘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.
Name the following:
The compound formed when iron [Fe2+] combines with oxygen [O2−].
Express each of the following in kilograms
58.34 g
A molecule containing three atoms is called a ______ molecule.
