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प्रश्न
When a magnesium ribbon is heated, it burns in air to form magnesium oxide. Write a balanced chemical equation for this reaction. Name (i) substance oxidised, and (ii) substance reduced.
उत्तर
Balanced chemical reaction is given as follows:
2Mg + O2 → 2MgO
(i) The substance oxidised is magnesium.
(ii) The substance reduced is oxygen.
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संबंधित प्रश्न
In the reaction represented by the equation:
MnO2 + 4HCl → MnCl2 + 2H2O + Cl2
(i) name the substance oxidised.
(ii) name the oxidising agent.
(iii) name the substance reduced.
(iv) name the reducing agent.
Explain reduction in terms of gain or loss of oxygen with one example.
Fill in the blank
In redox reaction oxidation and reduction occur ............................
Why zinc and aluminium are considered to have a unique nature. Give balanced equations to support your answer.
Give two tests for a reducing agent.
When the positive charge on an ion increases or the negative charge on them decreases it is called as _______.
Oxidising agents are also called as ______ because they remove electrons form other substances.
Identify the oxidising agent (oxidant) in the following reactions
`"V"_2"O"_5 + 5"Ca" -> 2"V" + 5"CaO"`
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Heating of an iron rod to red hot
Metals are good ______.
