Option A: This unit represents the concentration of a substance in moles per cubic decimeter. It is commonly used to express the concentration of a solution. However, the Van der Waals constant ‘b’ does not have this unit.

Option B: This unit represents volume in cubic decimeters, which is equivalent to liters. It is often used to measure the volume of a substance. However, the Van der Waals constant ‘b’ is not expressed in this unit.

Option C: This unit represents the inverse of molar volume. It indicates the volume occupied by one mole of a substance. The Van der Waals constant ‘b’ has this unit because it represents the volume excluded by one mole of a substance in the Van der Waals equation.

Option D: This unit represents the product of volume and amount of substance. However, the Van der Waals constant ‘b’ does not have this unit.

This unit represents the concentration of a substance in moles per cubic decimeter. It is commonly used to express the concentration of a solution. However, the Van der Waals constant ‘b’ does not have this unit.

This unit represents volume in cubic decimeters, which is equivalent to liters. It is often used to measure the volume of a substance. However, the Van der Waals constant ‘b’ is not expressed in this unit.

This unit represents the inverse of molar volume. It indicates the volume occupied by one mole of a substance. The Van der Waals constant ‘b’ has this unit because it represents the volume excluded by one mole of a substance in the Van der Waals equation.

This unit represents the product of volume and amount of substance. However, the Van der Waals constant ‘b’ does not have this unit.