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प्रश्न
Rohan heard that instructions were given to the laboratory attendent to store a particular chemical i.e., keep it in the darkroom, add some urea in it, and keep it away from dust. This chemical acts as an oxidising as well as a reducing agent in both acidic and alkaline media. This chemical is important for use in the pollution control treatment of domestic and industrial effluents. Write the name of this compound. Explain why such precautions are taken for storing this chemical.
उत्तर
\[\ce{H2O2}\] is decomposed by light and dust particles. Urea is added as a negative catalyst, i.e., to check its decomposition.
\[\ce{2H2O2 (l) -> 2H2O (l) + O2 (g)}\]
Because of the oxidizing properties, \[\ce{H2O2}\] is widely used to control pollution by oxidation of harmful cyanides and obnoxious smelling sulphides present in domestic and industrial effluents. It also helps in sewage disposal by supplying \[\ce{O2}\] for oxidation of organic matter present – in sewage waters.
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संबंधित प्रश्न
Mention the uses of deuterium.
Hydrogen peroxide is ______.
Hydrogen peroxide is obtained by the electrolysis of ______.
How is heavy water prepared? Compare its physical properties with those of ordinary water.
Give a method for the manufacture of hydrogen peroxide and explain the reactions involved therein.
Hydrogen peroxide is obtained by the electrolysis of ______.
Hydrogen peroxide for the first time was prepared by:
The volume of '10 Vol' of H2O2 required to liberate 500 mL O2 at NTP is ______.
The products obtained from a reaction of hydrogen peroxide and acidified potassium permanganate are ______.
In a basic medium, H2O2 exhibits which of the following reactions?
(A) \[\ce{Mn^{2+} -> Mn^{4+}}\]
(B) \[\ce{I2 -> I^-}\]
(C) \[\ce{PbS -> PbSO4}\]
Choose the most appropriate answer from the options given below.
