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# The ice floats on water because A] solid have lesser density than liquidB] it has open – cage-like structure in which fewer molecules are packed per mL than water C] ice is lighter than water D] when ice is formed water molecules come closer and start floating

Last updated date: 20th Apr 2024
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Density is defined as mass per unit volume. Solid has maximum density and liquid has a low density as compared to solid. So the state which has low density floats and with high density they shrink.

Ice is solid so it floats on water because water molecules expand on freezing and form an open cage-like structure. This leads to a decrease in the density of ice. This means for a given mass ice will have more volume as compared to liquid water. Thus, being lighter ice floats on water.

A] solid have lesser density than liquid- solids have a high density as compared to that of liquid, so this option is not correct
B] it has open – cage-like structure in which fewer molecules are packed per mL than water – when water freezes it expands and formed a cage-like structure so this option is correct
C] ice is lighter than water – it is incorrect as ice is lighter than water but when it forms a cage-like structure
D] when ice is formed water molecules come closer and start floating – water molecules come closer but due to this density does not decrease. So this option is incorrect

Our correct option is ‘B’ it has an open – cage-like structure in which fewer molecules are packed per mL than water.

Note:
-Solid are highly rigid but gases are not rigid
-Solid has negligible compressibility but gases have high compressibility
-Solids have a definite shape but gases do not have a definite shape
-Solids have the least kinetic energy gases that have maximum kinetic energy.
-Solids do not flow as gases flow in all directions.