Question

Uniformly sweet taste of tea or coffee is due to
(a)Spreading
(b)Osmosis
(c)Permeability
(d)Diffusion

Answer 1

Hint: Tea and coffee usually taste bitter as they contain a component called caffeine. Coffee contains Quinine which makes it better and it is present in tonic water.

Complete answer:
Uniform taste of tea or coffee is due to diffusion. In the preparation of tea or coffee, we add tea powder or uniformly sweet coffee powder. This is due to the diffusion of solvent from the region of high concentration to low concentration which makes it uniformly sweet.

Additional Information:
 Spreading: The spreading of particles is uniformly distributed throughout the given volume and the spread of molecules of gases holds a huge amount of energy. The spreading of molecules is from the region of high concentration to low concentration in the solvent.

Osmosis: The movement of a solvent from high concentration to low concentration across a semipermeable membrane is known as osmosis. Any solvent can undergo osmosis whether it is water or gas. Osmosis helps with the removal of metabolic waste products and the transpiration of nutrients. Osmosis maintains turgidity of cells and controls the dehiscence of fruits and sporangia.

Permeability: It is the allowance of materials to pass through the semipermeable membrane which is repellent to large molecules. The centre of the cell which is hydrophobic gives the membrane to cause permeability which results in the molecules not capable of passing throughout the membrane.
So, the correct answer is 'diffusion'.

Note: Tea is the second most-consumed beverage in the world which has around 3000 different types and also considered as the favourite drink of the world. Tea leaves have the highest amount of caffeine as compared to coffee beans but when it comes to your cup, coffee contains double the amount of caffeine.