A) Bond energy
B) Melting point
C) Boiling point
D) Bond length
Correct Answer: D
Solution :
Both hydrogen \[({{H}_{2}})\] and deuterium \[({{D}_{2}})\] molecules have same bond length but have different bond energy, melting point and boiling point| Property | Hydrogen \[({{H}_{2}})\] 74 pm | Deuterium \[({{D}_{2}})\] 74 pm |
| Bond energy | \[436\text{ }kJ\text{ }mo{{l}^{-1}}\] | \[443.3\text{ }kJ\text{ }mo{{l}^{-1}}\] |
| M.P. | \[{{0.00}^{o}}C\] | \[{{3.81}^{o}}C\] |
| B.P. | \[{{100.0}^{o}}C\] | \[{{101.42}^{o}}C\] |
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