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प्रश्न
Explain the term oxidation in term of addition and removal of oxygen/hydrogen with a suitable example.
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उत्तर
Addition of oxygen or removal of hydrogen is called oxidation.
\[\ce{Carbon + Oxygen->Carbon dioxide}\]
\[\ce{C + O2->CO2}\]
Here carbon is oxidised to \[\ce{CO2}\]
\[\ce{H2S + Cl2->2HCl + S}\]
Here `"H"_2"S"` is oxidised to sulphur as removal of `"H"_2` takes place.
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संबंधित प्रश्न
Identify the substances that are oxidised and the substances that are reduced in the following reaction.
\[\ce{4Na(s) + O2(g) -> 2Na2O(s)}\]
Write the chemical formula of rust.
Give one example of an oxidation-reduction reaction which is also a combination reaction.
When a magnesium ribbon is heated, it burns in air to form magnesium oxide. Write a balanced chemical equation for this reaction. Name
- substance oxidised, and
- substance reduced.
Identify from the reaction the reactants that undergo oxidation and reduction.
\[\ce{NiO + H2 -> Ni + H2O}\]
Explain the following in term of gain or loss of oxygen with two examples.
Oxidation
With reference to oxidation & reduction reaction – complete the statement given by filling in the blanks with only the words (a) Addition (b) Removal.
‘Oxidation is a chemical reaction involving ____ of oxygen to a substance or ____ of hydrogen from a substance. Reduction on the otherhand involves ____ of hydrogen to a substance or ____ of oxygen from a substance.
Explain the term redox reaction with an example involving the reaction of hydrogen sulphide with chlorine.
Explain the following reaction with their balanced chemical equation.
Hydrogen sulphide reacts with sulphur dioxide.
Select the oxidising agent for the following reaction:
\[\ce{H2S + I2 -> 2HI + S}\]
