Which test for iron(II) ions is conclusive?
add maganese seven oxide to a freshly prepared iron two. warm the mixture together and the purple colour of maganese will change to colourless that confirms iron two. the test is also for reducing agent. so peace out. i hope you get that
The test for iron(II) ions that is considered conclusive is the thiocyanate test.
To perform the thiocyanate test, you would need the following materials: a sample containing iron(II) ions, potassium thiocyanate solution, and dilute sulfuric acid.
Here are the steps to perform the thiocyanate test:
1. Take a small amount of the sample and place it in a test tube.
2. Add a few drops of dilute sulfuric acid to the test tube to acidify the solution.
3. Add a few drops of potassium thiocyanate solution to the test tube.
4. Observe the color change of the solution.
If iron(II) ions are present in the sample, a blood-red color is produced due to the formation of iron(II) thiocyanate complex. This color change is conclusive evidence for the presence of iron(II) ions.
It is important to note that the thiocyanate test is specific to iron(II) ions and does not give conclusive results for other forms of iron ions, such as iron(III) ions. If you also want to test for the presence of iron(III) ions, additional testing methods may be required.