An open beaker of water in equilibrium with water vapour is in a sealed container. When a few grams of glucose are added to the beaker of water, the rate at which water molecules :

Consider the following rections:

'x', 'y' and 'z' in these reactions are respectively.

The figure that is not a direct manifestation of the quantum nature of atoms is :

If AB₄ molecule is a polar molecule, a possible geometry of AB₄ is