2006-10-11 12:40:58 · 4 answers · asked by beeboroachgoingon197 1 in Science & Mathematics ➔ Chemistry
Here are some examples of common Reducing Agents and the colour changes that occur when they are oxidised:
1. Potassium iodide (KI) changes from colourless to brown.
2. Hydrogen sulphide (H2S) forms a yellow substance/precipate.
3. Iron(II) salts Fe2+, they change from pale green to yellow.
4.Concentrated hydrochloric acid (HCl) produces a yellow-green gas when it acts as a reducing agent.
I hope this helps......gud luck!
2006-10-11 13:04:43 · answer #1 · answered by J D 3 · 0⤊ 0⤋
potassium permangante (purple to brown or purple to slight pink to colourless)and potassium dichromate (organe to yellow to green) are very strong oxidising agents. and ironoxide as reducing agents
2006-10-11 19:51:48 · answer #2 · answered by rohit 2 · 0⤊ 0⤋
Rohit K, potassium permanganate and dichromate are both oxidizing agents. The color changes are accurate though.
2006-10-12 18:02:53 · answer #3 · answered by Supertramp_82 2 · 0⤊ 0⤋
fehlings solution
2006-10-11 19:51:44 · answer #4 · answered by shamsayasmin 3 · 0⤊ 0⤋