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प्रश्न
Name:
a substance that will reduce aqueous Iron(III)ions to iron(II)ions.
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उत्तर
zinc
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संबंधित प्रश्न
Define ‘redox reaction’. Give one example.
What is meant by rust?
Which of the following statements about hydrogen is incorrect?
When the positive charge on an ion increases or the negative charge on them decreases it is called as _______.
In the reaction of iron with copper sulphate solution:
CuSO4 + Fe → Cu + FeSO4
Which option in the given table correctly represents the substance oxidized and the reducing agent?
| OPTION | Substance Oxidized | Reducing Agent |
| A | Fe | Fe |
| B | Fe | FeSO4 |
| C | Cu | Fe |
| D | CuSO4 | Fe |
Identify the oxidising agent (oxidant) in the following reactions
`2"Mg" + "O"_2 -> 2"MgO"`
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
2Mg +O2 → 2MgO
The metallic oxide which can be reduced by using common reducing agents is ______.
