Ans. (D)
Explanation:
ion - ion ∝ 1/r
dipole – dipole ∝ 1/r3
Londong dispersion ∝ 1/r6
Q. 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) 1/r
(II) dipole-dipole (b) 1/r2
(III) London dispersion (c) 1/r3
(d) 1/r6
(A) (I)-(a), (II)-(b), (III)-(d) (B) (I)-(a), (II)-(b), (III)-(c)
(C) (I)-(b), (II)-(d), (III)-(c) (D) (I)-(a), (II)-(c), (III)-(d)