Q1: Molarity is defined as the number of gm moles of solute per __________ of solvent.

ANS:A - litre

A liter (or litre) is a unit of volume commonly used in the metric system. In the context of molarity, a liter refers to the volume of the solvent in which the solute is dissolved. When we express molarity, denoted by the symbol "M," it represents the number of moles of solute dissolved in one liter of solvent. For example, if we have a solution with a molarity of 1 M (1 molar), it means that there is 1 mole of solute dissolved in each liter of solvent. Similarly, a solution with a molarity of 0.5 M contains 0.5 moles of solute per liter of solvent. Using liters as the unit of volume in molarity calculations provides a convenient way to express the concentration of a solution in terms of the volume of solvent present. This allows for easy comparison and manipulation of concentrations in various chemical reactions and processes. So, when we define molarity in terms of liters, we are essentially stating the concentration of the solute in relation to the volume of the solvent in which it is dissolved.