Which statement best describes syrup preparation by agitation?

• A. Sucrose is added to water and the mixture is heated without agitation.
• B. Sucrose is added to purified water and agitated; other solid ingredients are added to the syrup and agitated (slow process).
• C. Syrups are formed by adding all ingredients at once and rapidly mixing.
• D. Temperature is the only factor; agitation is unnecessary.

Answer: (B)

The main idea is that agitation speeds up dissolution and keeps all components evenly distributed in the syrup. Stirring increases mass transfer, breaking the boundary layer around dissolving sugar crystals, and helps keep solid ingredients from settling or clumping.

The best statement reflects dissolving sucrose in purified water with continued stirring, then adding the other solid ingredients to the syrup gradually while maintaining agitation. This slow, continuous mixing prevents localized supersaturation, reduces the chance of crystallization, and yields a homogeneous syrup where all components are evenly incorporated.

Why the other approaches fit less well: heating without agitation can slow dissolution and allow crystals to reform on container surfaces, leading to incomplete dissolution. Adding all ingredients at once and mixing rapidly can cause clumping or uneven distribution, resulting in an inhomogeneous syrup. Temperature matters, but without agitation, even at the right temperature, dissolution and uniform mixing are not reliably achieved.