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Subject :NSO    Class : Class 7

When ice changes into water which is at 0°C, then the
I. Work is done in breaking the molecular structure of ice in solid state.
II. Energy is absorbed to raise the temperature.
III. Energy is absorbed to decrease the temperature.
Which of the given statements is/are correct?

A I only
B I and II only
C II only
D I and III only


solution not up to the mark

Ans 1:

Class : Class 7
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