In burning of paper and the evaporation of water. Which of the following property does not change?

Density.

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Mass.

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Arrangement of atoms

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Both A and B

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Solution

The correct option is B
Mass.

By the Law of conservation of mass we can say that mass of the substance does not change in the burning of paper as well as in evaporation of water.

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Similar questions

Give reason:

(a)Freezing of water to ice and evaporation of water are physical changes.

(b)Burning of a candle is both a physical and a chemical change.

(c)Burning of paper is a chemical change.

(d)Cutting of a cloth piece is a physical change, though it cannot be reversed.

Which of the following does not satisfy the following property?
A number which divides 542 and 128 and leaves a remainder 2 in both cases.

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