Dissolving sugar in water is a ______ change.

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Solution

Sugar dissolved in water can be obtained back by vaporization, followed by condensation and crystallization.
Since the original substance can be recovered back it is a physical change.
Hence, dissolving sugar in water is a physical change.

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Q. When sugar dissolves in water, it disappears. That means it must have changed into a new substance. Therefore, dissolving is a chemical change. Do you agree? Give reasons.

Question 8

Paheli’s mother made a concentrated sugar syrup by dissolving sugar in hot water. On cooling, crystals of sugar got separated. This indicates a:
(a) physical change that can be reversed
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(c) physical change that cannot be reversed
(d) chemical change that cannot be reversed

Q. Can you dissolve more sugar in a saturated solution of sugar in water at a particular temperature?

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(a) 5 g of sugar is dissolved in 99 g of water.

(b) 5 g of sugar is dissolved in 100 g of water.

Choose the correct answer.

Q. Is dissolving sugar in water a physical change or a chemical change?

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Dissolving sugar in water is a ______ change.

Sugar dissolved in water can be obtained back by vaporization, followed by condensation and crystallization.Since the original substance can be recovered back it is a physical change.Hence, dissolving sugar in water is a physical change.

Sugar dissolved in water can be obtained back by vaporization, followed by condensation and crystallization.
Since the original substance can be recovered back it is a physical change.
Hence, dissolving sugar in water is a physical change.