Question

why are dry raisins kept in water and then put in sugar syrup

Answer 1

Answer:

Explanation: The concentration inside rasins is higher so by endosmosis it swells up. If dry raisins are kept in dilute sugar solution they swell.This is due to endosmosis. As the concentration in dry raisin is high,due to endosmosis the dilute sugar solution enters into dry raisin and it swells up

Answer 2

When raisin is put into sugar solution, it shrinks and wilts due to the phenomenon of exosmosis. If the water concentration inside the cell is higher than the sugar medium, the sugar medium is said to be hypertonic solution. Here, the number of water molecules diffusing out will be more than the molecules entering the cell. The cell will shrink due to exosmosis