Question

An egg sinks when immersed in water contained in a vessel. On dissolving a lot of salt in the water,will the egg

• A. Develop cracks in the shell
• B. Break
• C. Rise and then float
• D. Remain where it is

Answer 1

The correct option is C Rise and then float

Answer is C.
An egg will sink in fresh water but it will float in very salty water; the density of the egg is greater than the density of fresh water but less than the density of the salty water.
The density of salty water can be a much as $10\%$ greater than that of fresh water i.e. up to $1.1g/c{m}^3$.
Hence, on dissolving a lot of salt in the water, the egg will rise and then float.