Student Activities

ACTIVITY

What happens when you add with these chemicals?

Sugar + Potassium permanganate+ Glycerin.

Answer: 

(i) After adding sugar, potassium permanganate and glycerin to the dish, immediately step back because spark and solid potassium permanganate will be expelled from the dish.

(ii) When potassium permanganate mixes with glycerin, a redox reaction starts. This reaction starts out really slow, but produces a lot of heat, so it will start to speed up bit by bit. As the potassium permanganate oxidises the sugar, it will speed up more and more until it finally starts to smoke and after that it will ignite.

Anesthetics

The first local anesthetic was cocaine was isolated from coca leaves by Albert Niemannin

1. Dettol

Mixture of chloroxylenol and terpincol

2. Tincture

Iodine + 2 to 3% alcohol – Water mixture Soap, Iodoform,

phenolic solutions, ethanol, Boric acid, are examples.