Question

The fresh egg can be distinguished from rotten by putting them in a bowl of water, how?
(A) Rotten egg will float but fresh egg does not.
(B) Fresh eggs float but rotten eggs do not.
(C) Rotten egg shell ruptured
(D) Fresh egg shell ruptured

Answer 1

Hint: The eggs are laid by the parent to produce its offspring. The egg has the embryo, nutritive layer and the shell in it. The yolk helps the embryo for its growth and the development. The chicken eggs are mostly preferred by the humans for consumption.

Complete Answer:
- The trick is followed by most of us to find whether the egg is in good quality or it is rotted. First, the bowl is taken and the clean water is poured. The egg which is to be tested is put on the water.
- Check whether the egg floats on the water or else moves down. It is known that the shells of the egg are porous in nature. This is because there required the air for the growth of the embryo inside the egg.
- If the egg floats in the water, it is rotted and if it settles at the bottom, it is in good condition. The science behind this trick is that in the rotten egg, the embryo and the yolk inside is decomposed and the material is converted into the carbon dioxide and moves out of the egg through the air gaps. This reduces the yolk content in the egg and increases air space. Hence this rotten egg floats on the water.

Thus the option (A) is correct.

Note: If the egg stays down, it is fresh. If the egg stays down and at some angles, it is still fresh and can be consumed. If the egg stays at the pointed end at the down, it is safe but it is good for baking and hard cooked. If the egg floats, they are decomposed and must be discarded.