Q1: Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.

ANS:A - less than

Bound moisture is the moisture that is physically bound to the surface or within the structure of a solid material. Unlike free moisture, which can evaporate readily, bound moisture is not easily evaporated because it is held tightly by the solid material. Bound moisture exerts an equilibrium vapor pressure that is less than that of the pure liquid at the given temperature. This is because bound moisture is not in the form of a free liquid; instead, it is absorbed or adsorbed onto the surface of the solid or trapped within its structure. As a result, it does not exhibit the same vapor pressure characteristics as the pure liquid at that temperature. So, the correct option is: less than.