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A beaker is filled completely with water at $4^{\circ} \mathrm{C}$. Identify the incorrect statement.
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The correct answer is:
Water overflows either when heated above $4^{\circ} \mathrm{C}$ or cooled below $4^{\circ} \mathrm{C}$.
The density of water is maximum at $4^{\circ} \mathrm{C}$. As the temperature increases or decreases, the density of water decreases, which increases its volume. Hence, water overflows either when heated about $4^{\circ} \mathrm{C}$ or cooled below $4^{\circ} \mathrm{C}$.
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