Question

What is the reagent responsible for the formation of H2S in the qualitative analysis of group II?

when the cations are separated into subgroups, what is the purpose of the potassium hydroxide,KOH?

Answer 1

I have no idea what your lab procedure is. You could be using H2S gas or you could be generating H2S <i>in situ</i> by using thioacetamide and heating the solution.

What do you thing the KOH does?

Answer 2

THanks for your help dr bob you're useless.