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प्रश्न
How is heavy water prepared? Compare its physical properties with those of ordinary water.
उत्तर
Heavy water can be prepared by exhaustive electrolysis of water. Comparison of physical properties of \[\ce{H2O}\] and \[\ce{D2O}\].
| Property | \[\ce{H2O}\] | \[\ce{D2O}\] | |
| (i) | Molecular mass (g mol–1) | 18.015 | 20.027 |
| (ii) | Melting point (K) | 273.0 | 276.8 |
| (iii) | Boiling point (K) | 373.0 | 374.4 |
| (iv) | Density (298 K) g cm–3 | 1.0000 | 1.1059 |
| (v) | Enthalpy of vapourisation (kJ mol–1) | 40.66 | 41.61 |
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संबंधित प्रश्न
Mention the uses of deuterium.
Why does \[\ce{H+}\] ion always get associated with other atoms or molecules?
Hydrogen peroxide is ______.
What is the importance of heavy water?
Give a method for the manufacture of hydrogen peroxide and explain the reactions involved therein.
What mass of hydrogen peroxide will be present in 2 litres of a 5 molar solution? Calculate the mass of oxygen which will be liberated by the decomposition of 200 mL of this solution.
Hydrogen peroxide is obtained by the electrolysis of ______.
H2O2 can be obtained when the following reacts with H2SO4 except with:
The products obtained from a reaction of hydrogen peroxide and acidified potassium permanganate are ______.
The strength of the 11.2 volume solution of H2O2 is ______.
[Given that molar mass of H = 1 g mol−1 and O = 16 g mol−1)
