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 \[\mathbf{(}{{\mathbf{H}}_{\mathbf{2}}}\mathbf{)}\] 74pm | Deuterium (P2) \[\mathbf{(}{{\mathbf{D}}_{\mathbf{2}}}\mathbf{)}\] 74pm |
| Bond energy | \[\text{436kJ mo}{{\text{l}}^{\text{-1}}}\] | \[\text{443}.\text{3kJ mo}{{\text{l}}^{\text{-1}}}\] |
| M.P. | \[0.00{}^\circ \text{C}\] | \[\text{3}.\text{81}{}^\circ \text{C}\] |
| B.P. | \[\text{1}00.0{}^\circ \text{C}\] | \[\text{1}0\text{1}.\text{42}{}^\circ \text{C}\] |
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