Question

a person takes a consetrated solution of salt after sometime we start vomiting?

Answer 1

because osmosis process takes place in our stomach when we take concentrated salt solution

Answer 2

we all know that when a cell is kept in hypertonic solution it leave the water due to less water in the external environment, in the same way when we drink or a person drinks concentrated solution of salt.the person's body leaves the water(cells in the body because of hypertonic solution) due to being in a hypertonic solution. This phenomenon result into vomiting.

hope it helps!!