Question : An egg sinks in a soft water but floats in a concentrated solution of salt because:
Option 1: egg absorbs salt from the solution and expands.
Option 2: albumin dissolves in a salt solution and the egg becomes lighter.
Option 3: the density of the salt solution exceeds the density of eggs.
Option 4: water has high surface tension
Correct Answer: the density of the salt solution exceeds the density of eggs.
Solution : The correct answer is the density of salt solution exceeds the density of eggs.
Any substance floats over or sinks into the liquid substance because of the density difference. When the substance has a lower density than the liquid solution, it floats on the liquid, and if the density of the substance is greater than the liquid solution, then it sinks. The same is the case with eggs; they float in the salt solution because they have a lower density than the saltwater solution.
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