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प्रश्न
Give the general group study of hydrogen with reference to
burning
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उत्तर
Hydrogen burns in oxygen to form its oxide. It burns with a pop sound.
2H2 + O2 → 2H2O
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संबंधित प्रश्न
Define ‘redox reaction’. Give one example.
Define corrosion.
When copper powder is heated strongly in air, it forms copper oxide. Write a balanced chemical equation for this reaction. Name
- substance oxidised, and
- substance reduced.
State what is reducing agent. Give an example of oxidising agent in the gaseous, liquid, and solid form.
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.
Identify the reducing agent in the following reactions -
`"H"_2"O" + "F"_2 -> "HF" + "HOF"`
Identify the reducing agent in the following reactions
`2"H"_2 + "O"_2 -> 2"H"_2"O"`
Identify the oxidising agent (oxidant) in the following reactions
`"V"_2"O"_5 + 5"Ca" -> 2"V" + 5"CaO"`
Mention some oxidation reactions that occur in daily life.
It is recommended to use air tight containers for storing oil for a long time.
