Select the correct statement(s).

(1) There are residual forces acting along the a surface of liquid. This is also expected for a surface of a solid. Due residual to forces, the surface of a solid (or a liquid) has a to attract and tendency retain molecule of other species with which it brought into contact. Thus, correct.(2) At start, adsorption is slow, when multilayers are formed, saturation is attained and rate of adsorption decreases. When desorption also starts at equilibrium. Rate of adsorption ⇌ rate of desorption. Thus, correct (3) True(4) True