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Match the type of interaction in Column A with the distance dependence of their interaction energy in Column B : Column A: (I) iron - ion (II) dipole – dipole (III) London dispersion Column B: (a) 1/r (b) 1/r^2 (c) 1/r^3 (d) 1/r^6
- (1) (I)-(a), (II)-(b), (III)-(c)
- (2) (I)-(a), (II)-(c), (III)-(d)
- (3) (I)-(a), (II)-(b), (III)-(d)
- (4) (I)-(b), (II)-(d), (III)-(c)
Correct answer: (2) (I)-(a), (II)-(c), (III)-(d)
Solution
The correct option matches the interactions based on their distance dependence: iron-ion interactions are typically described by a 1/r relationship due to their electrostatic nature, dipole-dipole interactions follow a 1/r^3 dependence, and London dispersion forces, which arise from temporary dipoles, decrease with a 1/r^6 dependence.
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