Which of the following can be categorised as both reversible and irreversible change?

None of these

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Both melting of wax and formation of curd from milk.

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Formation of curd from milk.

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Melting of wax in a candle.

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Solution

The correct option is A
None of these

Formation of curd from milk is an irreversible change, as milk cannot be obtained back from curd.
Melting of wax in a candle is a reversible change, as wax can be solidified and can be converted back to a candle.
But in general, there is no reaction which is both reversible as well as irreversible.

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Similar questions

Which of the following can be categorised as both chemical and physical change?

Which of the following statements is incorrect?

Statement 1: Changes are the differences in the state of affairs.

Statement 2: Change can be grouped into reversible and irreversible change.

Statement 3: Changes that can not be undone are reversible changes and changes that can be undone are irreversible changes.

Statement 4: There are many ways in which change can be brought about.

Which of the following can be classified into physical and chemical change? Also mention whether it's a reversible or irreversible change

Four students have their own opinion about reversible and irreversible changes. Who among the following is correct?

Rohan: Both physical and chemical changes are reversible.

Sam: Both physical and chemical changes are irreversible.

Tom: Physical changes are irreversible and chemical changes are reversible.

Riah: Chemical changes are irreversible and physical changes are reversible

Question 3

Classify the following changes into reversible and irreversible changes:

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