show that a physical change can easily be reversed??

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Solution

Physical change is generally changes the state of matter. Like melting of Ice. We can easily convert water to ice by simply decreasing the temperature of system from normal (by keeping in refrigerator at freezing temperature.)

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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
(b) chemical change that can be reversed
(c) physical change that cannot be reversed
(d) chemical change that cannot be reversed

Q. Which change can be easily be reversed?

Question 7

Neutralisation reaction is a
(a) physical and reversible change.
(b) physical change that cannot be reversed.
(c) chemical and reversible change.
(d) chemical change that cannot be reversed.

Q. Physical changes like boiling do not make new materials and are easily reversed e.g. by cooling, which causes ________.

(i) Physical changes are easily reversible. (ii) Physical change does not produce new substance (iii) Physical change does not involve change in mass. Which of the following statement is correct?

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