Give reasons :
Potato cubes when placed in water become firm and increase in size.

Give reasons : Ice floats on water.

Give reasons why? Ionic compounds are soluble in water

Give reasons : On boiling, water loses its taste.

Give reasons : When water is heated, we see bubbles rising up.

Assertion :Solubility of noble gases in water decreases with increases in atomic size Reason :Solubility of noble gases in water is due to instantaneous dipole induced dipole interaction

Hydrophilic gels, when placed in water, absorb liquid resulting in an increase of their volume. This process of swelling of gels takes place with:

Give reason for the following. Displacement can become zero, but distance cannot

Give reasons for the following Boiled water tastes flat.

Give reasons : Water droplets can be seen outside a chilled water bottle.

Hydrophilic gels, when placed in water, absorb liquid resulting in an increases of their volume. This process of swelling of gels takes place with a. No change in volume Net increase in volume c. Net decrease in volume Large reduction in volume