Question

29) Glucose in
water is an example of
a.positive adsorption
b.negative adsorption
c.postive absorption
d.negative absorption
​

Answer 1

Answer:

Dissolving sugar in water is an example of a physical change. Here's why: A chemical change produces new chemical products. In order for sugar in water to be a chemical change, something new would need to result. A chemical reaction would have to occur.

Answer 2

Glucose in water is an example of positive absorption.

Explanation:

• Glucose in water is an example of positive absorption.
• Positive adsorption -it is the absorption in which if the concentration of adsorbate is more on the surface when compared to its concentration in the bulk phase then it is called positive adsorption.
• The case of adsorption by solids from the solutions mostly has positive adsorption.
• When the solute is adsorbed on the surface of the solid adsorbent, the concentration of the solute will be on the surface of the adsorbent which is greater than in the bulk. This is known as positive adsorption.