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प्रश्न
Why do we store silver chloride in a dark coloured bottle?
Give reason:
Silver chloride is stored in dark coloured bottles.
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उत्तर
Silver chloride is a white solid. However, it is very sensitive to sunlight and decomposes in the presence of light to form silver (grey in colour) and chlorine.
\[\ce{2AgCl_{(s)} ->[Sunlight] \underset{Grey}{2Ag_{(s)}} + Cl2_{g)}}\]
In order to avoid action by sunlight, it is kept in a coloured bottle.
संबंधित प्रश्न
What is an oxidising agent?
What is meant by rust?
Give one example of an oxidation-reduction reaction which is also a combination reaction.
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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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Fill in the blank
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MULTIPLE CHOICE QUESTIONS
The process of adding oxygen to a substance is called
- oxidation.
- reduction.
- displacement.
- hydrogenation.
TRUE \ FALSE
Hydrogen is a good oxidizing agent.
Compare hydrogen and halogens on the basis of:
reaction with oxygen
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PbO2 + SO2→ PbSO4
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Explain the following reaction with their balanced chemical equation.
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Identify the oxidising agent (oxidant) in the following reactions
`"CuSO"_4 + "Zn" -> "Cu" + "ZnSO"_4`
The tarnishing of metals is due to the formation of ______.
Identify the following reactions as oxidation/reduction/redox reaction
Zn + CuSO4 → Cu + ZnSO4
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State the change in colour observed in following case mentioning the reason:
Copper powder is strongly heated in air.
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