Question

Statement of deflocculated suspension

• A. Sedimentation for rapidly
• B. Sedimentation for slowly
• C. Easy to redisperse
• D. Unpleasant in appearance

Hint:

Deflocculated suspensions have slow sedimentation but may cause caking, affecting formulation stability and patient acceptability.

Answer 1

The Correct Option is B

A deflocculated suspension is one in which the particles remain as individual entities rather than forming loose aggregates or flocs. As a result, the particles settle slowly due to their small size and high surface area, causing sedimentation to occur slowly. Characteristics of deflocculated suspensions include: - Sedimentation occurs slowly because individual particles settle independently, often forming a compact, hard cake that is difficult to redisperse.
- They tend to have poor physical stability as sedimented particles pack tightly, leading to difficult redispersion.
- Appearance may be clear initially but becomes problematic upon settling.
In contrast, flocculated suspensions form loose aggregates (flocs) that settle rapidly but are easier to redisperse, preventing hard caking.