Question

Raveena poured a mixture of two liquids X and Y into a beaker and stirred well. She has observed that X floats over Y and formed a separate layer on the top. She wanted to separate both the liquids as well as to observe the type of change. Which among the following statements would help her to get the correct idea? *
i) X and Y are miscible liquids and the type of change is reversible.

ii) X and Y are immiscible liquids and the type of change is reversible.

iii) X and Y are miscible liquids and the type of change is irreversible.

iv) X and Y are immiscible liquids and the type of change is irreversible.

Answer 1

Answer:

ii)

Explanation:

because they form two layers. they are immiscible.

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Answer 2

Answer:

(iv)

Explanation:

For instance X is oil and Y is water...oil floats above water because it is a lighter liquid as compared to water; water is a heavier liquid so both of them are immiscible because they are not mixing uniformly together and the change is not reversible because oil is heavier than water so the correct answer is the ( iv) i.e 4 th one