A suitable cleaning agent for a kitchen floor is a detergent. Detergents are specifically designed to dissolve and remove dirt, grease, and grime from surfaces, making them a highly effective cleaning agent for kitchen floors. They are also generally safe for use on a variety of surfaces, including tile, linoleum, and laminate flooring. Scouring paste, bar soap, and abrasives can be too harsh and abrasive for many kitchen floor surfaces, potentially causing damage or leaving scratches. It's important to follow the manufacturer's instructions when using any cleaning agent to avoid any damage to the floor and ensure a clean and safe environment.