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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
What properties of water make it useful as a solvent? What types of compound can it (i) dissolve, and (ii) hydrolyse?
Why is it said that-
Water is a universal solvent.
Why is it said that-
There is no alternative to water for cleaning purposes.
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The substance in which a solute dissolves is called a solvent.
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Give reasons: Lakes freeze from top towards bottom.
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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?
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The freezing point of water ______ with an increase in pressure.
Pure water boils at ______ °C at one atmospheric pressure.
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