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प्रश्न
Explain the following reaction with their balanced chemical equation.
Hydrogen sulphide reacts with sulphur dioxide.
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उत्तर
Hydrogen sulphide and sulphur dioxide react to form sulphur and water. It is a redox reaction.
\[\ce{\underset{\text{Sulphur dioxide}}{SO_{2(g)}} + \underset{\text{Hydrogen sulphide}}{H2S_{(g)}} -> \underset{\text{Sulphur}}{S_{(s)}} + \underset{\text{Water}}{H2O_{(l)}}}\]
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संबंधित प्रश्न
Define ‘redox reaction’. Give one example.
Why does the colour of copper sulphate solution change when an iron nail is dipped in it?
Define corrosion.
What is meant by rust?
What are anti-oxidants? Why are they added to fat and oil containing foods?
Identify the component oxidised in the following reaction:
H2S + Cl2 → S + 2HCl
When SO2 gas is passed through saturated solution of H2S, the following reaction occurs:
SO2 + 2H2S → 2H2O + 3S
In this reaction, which substance is oxidised and which one is reduced?
Fill in the following blanks with suitable words:
The addition of oxygen to a substance is called ......... whereas removal of oxygen is called ........
Fill in the following blanks with suitable words:
The addition of hydrogen to a substance is called ........ whereas removal of hydrogen is called .......
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Explain oxidation in terms of gain or loss of oxygen with one example.
Define reduction in terms of gain or loss of hydrogen with one example.
In the reaction represented by the following equation:
CuO (s) + H2 (g) → Cu (s) + H2O (1)
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(b) name the substance reduced
(c) name the oxidising agent
(d) name the reducing agent
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(a) oxidation
(b) dehydration
(c) reduction
(d) dehydrogenation
In order to prevent the spoilage of potato chips, they are packed in plastic bags in an atmosphere of:
(a) Cl2
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(c) N2
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Define reduction.
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Reduction
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Name:
a liquid that is an oxidizing agent as well as a reducing agent.
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Explain the term reduction in term of addition and removal of oxygen/hydrogen with a suitable example.
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Identify the reducing agent in the following reactions
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Identify the oxidising agent (oxidant) in the following reactions
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Sublimation of solid ammonium chloride
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- Name the black substance formed and give its chemical formula.
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Mention some oxidation reactions that occur in daily life.
______ is a metal that has a high resistance to corrosion.
Choose the odd one out and write the reason:
Identify the following reactions as oxidation/reduction/redox reaction
Zn + CuSO4 → Cu + ZnSO4
Identify the following reactions as oxidation/reduction/redox reaction
2Mg +O2 → 2MgO
Define oxidation number.
Identify the type of chemical reaction given below:
\[\ce{2Mg + O2 -> 2MgO}\]
It is recommended to use air tight containers for storing oil for a long time.
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