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प्रश्न
Divide the above equation into oxidation and reduction half-reactions.
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उत्तर
Fe → Fe2+ 2 e- ---- Oxidation
Cu2+ + 2 e → Cu ---- Reduction
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संबंधित प्रश्न
Define ‘redox reaction’. Give one example.
Give an example of an oxidation reaction.
Give one example of an oxidation-reduction reaction which is also a combination reaction.
In the reaction represented by the following equation:
CuO (s) + H2 (g) → Cu (s) + H2O (1)
(a) name the substance oxidised
(b) name the substance reduced
(c) name the oxidising agent
(d) name the reducing agent
Define reduction.
Compare hydrogen and halogens on the basis of:
reaction with oxygen
For the reaction PbO + H2→ Pb + H2O, which of the following statements is wrong?
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
The temperature of the reaction mixture rises when aluminium (Al) is added.
Explain this observation giving suitable reason.
The sum of the oxidation number of all atoms in a compound is ______.
A reddish brown metal used in electrical wires when powdered and heated strongly turns black. When hydrogen gas is passed over this black substance, it regains its original colour. Based on this information answer the following questions:
- Name the metal and the black substance formed.
- Write balanced chemical equations for the two reactions involved in the above information
