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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
Explain oxidation in terms of gain or loss of oxygen with one example.
Explain reduction in terms of gain or loss of oxygen with one example.
Define an oxidation reaction.
Why this reaction is considered a reversible reaction?
Divide the following reactions into oxidation and reduction half-reaction:
Cl2 + 2Br- → Br2 + 2Cl-
Complete and balance the following equation:
Zn +_________________→ZnCl2 + H2
Which of the following statements about the given reaction are correct?
\[\ce{3Fe_{(s)} + 4H2O_{(g)} -> Fe3O4_{(s)} + 4H2_{(g)}}\]
(i) Iron metal is getting oxidised.
(ii) Water is getting reduced.
(iii) Water is acting as the reducing agent.
(iv) Water is acting as oxidising agent.
A silver article generally turns black when kept in the open for a few days. The article when rubbed with toothpaste again starts shining.
- Why do silver articles turn black when kept in the open for a few days? Name the phenomenon involved.
- Name the black substance formed and give its chemical formula.
Identify the following reactions as oxidation/reduction/redox reaction
CuO+H2 → Cu+H2O
Find the oxidation number of the element in the following compound.
A1 in AlCl3
