Is it true that a steel coin sinks in the water while it floats in mercury?

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True

False

answer is A.

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Detailed Solution

The above statement is True.
A steel coin sinks in the water while it floats in mercury. This is because the density of steel is more than water and less than mercury. An object floats on a liquid only if its density is lower than the liquid. When an object is immersed in a fluid partially or wholly, it experiences an upward force called buoyant force or upthrust. Another force is the gravitational force becoming less than the buoyancy force, the object will float, and if the gravitational force is more, the buoyancy object will sink.

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