What is required to maintain uniformity in a suspension?

To maintain uniformity in a suspension, frequent agitation is essential. Suspensions are mixtures where solid particles are dispersed in a liquid, and over time, those particles can settle at the bottom due to gravity. This settling can lead to an uneven concentration of the active ingredient in the suspension if left undisturbed.

By frequently agitating the mixture, the solid particles are kept in suspension, ensuring that the distribution of the particles throughout the liquid remains consistent. This is crucial for applications, as an uneven suspension can lead to ineffective treatment or application when the mixture is used.

In contrast, leaving the suspension undisturbed would allow sedimentation to occur, leading to a lack of uniformity. Decreasing the amount of liquid could potentially increase the concentration of the solid but does not inherently address uniformity throughout the entire suspension. Adding more inert ingredients might also alter the mixture but doesn't specifically resolve the uniform distribution of the active components in the suspension. Frequent agitation is therefore the most effective method for maintaining uniformity in such mixtures.