Match the type of interaction in column A with the distance dependence of their interaction energy in column B
A B (i) ion-ion (a) \(\frac{1}{r}\) (ii) dipole-dipole (b) \(\frac{1}{r^2}\) (iii) London dispersion (c) \(\frac{1}{r^3}\) (d) \(\frac{1}{r^6}\)
| A | B |
| (i) ion-ion | (a) \(\frac{1}{r}\) |
| (ii) dipole-dipole | (b) \(\frac{1}{r^2}\) |
| (iii) London dispersion | (c) \(\frac{1}{r^3}\) |
| (d) \(\frac{1}{r^6}\) |
Show Hint
- (I)-(a), (II)-(b), (III)-(d)
- (I)-(b), (II)-(d), (III)-(c)
- (I)-(a), (II)-(b), (III)-(c)
- (I)-(a), (II)-(c), (III)-(d)
The Correct Option is D
Solution and Explanation
ion-ion (Coulombic): \(E \propto \frac{1}{r}\), so (i)-(a).
dipole-dipole (fixed orientation): \(E \propto \frac{1}{r^3}\), so (ii)-(c). (\(\frac{1}{r^2}\) is for ion-dipole.)
London dispersion: \(E \propto \frac{1}{r^6}\), so (iii)-(d).
This is (I)-(a), (II)-(c), (III)-(d).
Answer: (4) (I)-(a), (II)-(c), (III)-(d)
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