Solutions — Chemistry STD 12 Science — Question

Isotonic solution - Two or more solutions exerting the same osmotic pressure are called an isotonic solution.
Osmosis:
The diffusion of water molecules through a semi-permeable membrane from a region where water is more concentrated to a region where it is less concentrated is called Osmosis. In other words, osmosis is the diffusion of water from its pure state or dilute solution into a stronger or concentrated solution through a semi-permeable membrane.