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
(1) (i) – (a); (ii) – (b); (iii) – (c)
(2) (i) – (a); (ii) – (b); (iii) – (d)
(3) (i) – (b); (ii) – (d); (iii) – (c)
(4) (i) – (a); (ii) – (c); (iii) – (d)
Correct answer: (4) (i) – (a); (ii) – (c); (iii) – (d)
Explanation:
(i) ion-ion interaction energy is inversely proportional to the distance between ions (1/r).
(ii) dipole-dipole interaction energy is inversely proportional to the third power of (1/r3).
(iii) The interaction energy of London force is inversely proportional to sixth power of distance between two interaction particles (1/r6).