TEACHING LABORATORY
Chemical Reactions
VIRTUAL CHEMLAB
PERFORMANCE LABORATORY
The Laboratory
Challenge
The MCQ Challenge
ChemQuest
  VIRTUAL CHEMLAB
 


Preliminary Lab Manual

II. Colour of Common Metals

Colour of Unknown solution
Inference

Colourless
GpI, II & III cations; most acids and alkalis;hydrogen peroxide, limewater

Blue
Cu2+ ions in solution

Pale green
Fe2+ ions in solution (pale green), Cr3+, Ni

Green
Cr3+, Ni2+, CuCl2 solution

Yellow/yellow brown

Fe3+ ions in solution

K2CrO4 [potassium chromate(VI)]

 

Prev     1     2     3     4     5     6     7     Next

 
 

Copyright © 2001 Crescent Girls' School, ASKnLearn.com Pte Ltd.

All rights reserved.