Magic wine bar

Each glass contains a small amount of the following. Glass "A" can be filled so that students can see its clear, water like content.

A) Equal amounts of Sodium carbonate (0.5M) and potassium iodide (0.1M)
B) Phenolphthalein indicator.
C) Hydrochloric acid (2M)
D) Hydrogen peroxide (10%V)
E) Starch solution (10g/l)
F) Sodium thiosulfate (0.1M)



Add a small amount of each solution into a separate wine glass. Pour each solution into the other sequentially.

Pouring "A" into "B" produces red wine.

Pouring "B" into "C" produces lemonade.



Pouring "C" into "D" produces beer.


Pouring "D" into "E" produces Coke Cola.


Pouring "E" into "F" produces sparkling wine.

Can you explain the chemistry behind each reaction.


Another great chemical demonstration is the "Magic Bottle" .
Obtain a 1L volumetric flask. Dissolve 5 grams of KOH, 3 grams of glucose and a pinch of methylene blue in 250 mls of water. Stopper the flask and shake. The liquid is initially colourless but quickly turns blue on shaking. The process can be repeated several times.