Question

Explain an experiment to show immiscibility of liquids .​

Answer 1

1. Begin by having each group of students assemble a “wave bottle” and investigate the characteristics of two immiscible liquids.

2. How to make a “wave bottle”:

a)      Obtain a small, clear, plastic bottle with a screw top.

b)      Fill it half full with water; add vegetable oil until almost full to the top.

c)      Add a few drops of food coloring to the bottle.

d)     Screw the cap on tightly.

e)      Shake the “wave bottle” and observe.

3. Have students investigate these two immiscible liquids and record observations.

4. Discuss what the students have observed. Begin with some leading questions and then follow up:

•         Where did the food coloring end up?

•         What does this tell you about the food coloring’s properties?

•         Why does the food coloring end up in only one of the liquids?

•         Why do the liquids not mix?

•         What happens when you shake the bottle vigorously?

•         How can we get the two liquids to mix?

 

5. Introduce surfactants and briefly explain what these substances do. Surfactants are emulsifying agents that will allow two immiscible liquids to mix. Soaps and detergents are common surfactants. Many cleaning products are surfactants and this is one of the reasons they are so good at cleaning clothing and surfaces.

 

Explanation:

From the above u can see the experiment and a picture for materials required is also given. It is fully explained in that about immiscibility of liquid.

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Answer 2

QUESTION:

• Explain an experiment to show immiscibility of liquid.

ANSWER:

• Take Three Test Tubes. Fill each with 10ml of Water.
• Mark them as A, B and C. Pour 30ml of Vinegar, Lime Juice and Cooking Oil and stir carefully.
• You will observe A and B Test Tube will mix with Water while C will Float on Water.