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प्रश्न
Which of the following equation depicts reducing nature of \[\ce{H2O2}\]?
पर्याय
\[\ce{2[Fe(CN)6]^{4-} + 2H^{+} + H2O2 -> 2[Fe(CN)6]^{3-} + 2H2O}\]
\[\ce{I2 + H2O2 + 2OH^{-} -> 2I^{-} + 2H2O + O2}\]
\[\ce{Mn^{2+} + H2O2 -> Mn^{4+} + 2OH-}\]
\[\ce{PbS + 4H2O2 -> PbSO4 + 4H2O}\]
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उत्तर
\[\ce{I2 + H2O2 + 2OH^{-} -> 2I^{-} + 2H2O + O2}\]
Explanation:
As iodine is reduced from 0 to –1.
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संबंधित प्रश्न
Why is it said that-
There is no alternative to water for cleaning purposes.
Sea water is a bad conductor of electricity.
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The substance in which a solute dissolves is called a solvent.
Explain the picture in your own words.
Why is the density of seawater more than that of rain water?
Define the following.
Boiling point
Which of the following equations depict the oxidising nature of \[\ce{H2O2}\]?
Some of the properties of water are described below. Which of them is/are not correct?
(i) Water is known to be a universal solvent.
(ii) Hydrogen bonding is present to a large extent in liquid water.
(iii) There is no hydrogen bonding in the frozen state of water.
(iv) Frozen water is heavier than liquid water.
Give reasons: Lakes freeze from top towards bottom.
Give reasons: Ice floats on water.
\[\ce{H2O2}\] is a better oxidising agent than water. Explain.
Melting point, enthalpy of vapourisation and viscosity data of \[\ce{H2O}\] and \[\ce{D2O}\] is given below :
| \[\ce{H, O}\] | \[\ce{D2O}\] | |
| Melting point / K | 373.0 | 374.4 |
| Enthalpy of vapourisation at (373 K)/kJ mol–1 | 40.66 | 41.61 |
| Viscosity/centipoise | 0.8903 | 1.107 |
On the basis of this data explain in which of these liquids intermolecular forces are stronger?
The boiling point of water increases with ______ in pressure.
______ has the highest latent heat of fusion.
One gram of water requires ______ of heat to raise its temperature by l°C.
Water is circulated around the car engine using the ______ pump and the heat is absorbed.
What is the taste of distilled water & boiled water?
Which of the following ion is responsible for the temporary hardness of water?
