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प्रश्न
Explain the term redox reaction with an example involving the reaction of hydrogen sulphide with chlorine.
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उत्तर
Redox Reaction: “The reaction in which oxidation and reduction take place simultaneously is called Redox Reaction.”
Removal of hydrogen is oxidation. Here `"H"_2"S"` is oxidised to sulphur whereas the addition of hydrogen is reduction.
Here chlorine is being reduced to hydrogen chloride.
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संबंधित प्रश्न
Define ‘redox reaction’. Give one example.
Identify the substances that are oxidised and the substances that are reduced in the following reaction.
\[\ce{CuO_{(s)} + H2_{(g)} -> Cu_{(s)} + H2O_{(l)}}\]
Divide the following reactions into oxidation and reduction half-reaction:
Zn + Pb2+→ Pb + Zn 2+
Which of the following statements about hydrogen is incorrect?
Complete and balance the following equation:
Zn +_________________→ZnCl2 + H2
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.
Oxidation is a process which involves ____________.
Choose the odd one out and write the reason:
When hydrogen gas is passed over black copper oxide, a reddish-coloured layer of copper is formed.
Answer the questions that follow based on this reaction.
- Write the equation.
- What type of reaction is it?
- Complete the blanks:
In this reaction, an oxygen atom goes away from CuO (copper oxide), which means that ______ of copper oxide takes place, whereas a hydrogen molecule takes up an oxygen atom and water (H2O) is formed, meaning ______ of hydrogen takes place.
