‹ Back to the paper
Answer the following.
Outer hard shells of two eggs are removed. One of the eggs is placed in saturated solution of…
Outer hard shells of two eggs are removed. One of the eggs is placed in saturated solution of sodium chloride and the other egg is placed in pure water. What change will be observed and why?
Answer
Answer
Official answer keyThe egg in pure water swells (endosmosis: water enters the egg), while the egg in saturated NaCl solution shrinks (exosmosis: water leaves the egg), because the salt solution is hypertonic to the egg's contents and pure water is hypotonic.
From ISC 2026 Specimen Chemistry Paper 1, question 20(iii).