Question

Are the following processes reversible or irreversible?
a) Dissolving Sugar in water.
b) Shaking oil and vinegar together
c) Adding lemon juice to red cabbage juice

Answer 1

Answer:

a. Ireversible Change ,

b. Reversible Change ,

c. Reversible Change ,

d. Irreversible Change ,

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Answer 2

Answer:

A. reversible change

B. reversible change

C. irreversible change

Explanation:

A. when we dissolve sugar in water it can be separated by physical processes such as evaporation.

B. when we shake oil and vinegar together the one which is less dense ( oil) and goes up and the denser substance ( vinegar) comes down. So by the method of separating funnel we can separate them both.

C. when we add lemon juice to red cabbage juice it turns it colours red because lemon juice is acidic in nature. once utilised it can never come back.