Question

why happens on adding salt to the water in which eggs are boiled? why?

Answer 1

The most common reason to add salt to water when hard boiling an egg is to the increase the temperature of the water for better cooking. Evidence also suggests that salted water prevents an egg from cracking.

Answer 2

egg boils faster this is bcz.:-
because it cooks at a slightly higher temperature. But the difference is too small to be measurable.