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प्रश्न
Divide the following reactions into oxidation and reduction half-reaction:
Zn + Pb2+→ Pb + Zn 2+
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उत्तर
Zn + Pb2+ → Pb + Zn 2+
Zn → Zn 2+ + 2 e- ---- Oxidation
Pb2+ + 2 e → Pb ---- Reduction
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संबंधित प्रश्न
Which of the statements about the reaction below are incorrect?
\[\ce{2PbO(s) + C(s) → 2Pb(s) + CO2(g)}\]
- Lead is getting reduced.
- Carbon dioxide is getting oxidised.
- Carbon is getting oxidised.
- Lead oxide is getting reduced.
A shiny brown-coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’ and the black-colored compound formed.
Define reduction.
Why this reaction is considered a reversible reaction?
Name:
a substance that will reduce aqueous Iron(III)ions to iron(II)ions.
\[\ce{MnO2 + 4HCl -> + 2H2O + Cl2}\]
Identify the substance oxidized in the above equation.
Identify the reducing agent in the following reactions
`4"NH"_3 + 5"O"_2 -> 4"NO" + 6"H"_2"O"`
You are provided with two containers made up of copper and aluminium. You are also provided with solutions of dilute HCl, dilute HNO3, ZnCl2 and water. In which of the above containers, can these solutions be kept?
Oxidizing agents are otherwise called ______.
The tarnishing of metals is an example of ______ reaction.
