Aqueous solution of which of the following ions is green?

Aqueous solution of which of the following ions is alkaline?

An aqueous solutions of which of the following metal ions can oxidize hydrogen ?

An aqueous solution contain either Hg_2^(2+) " or " Hg^(2+) the given solution given green ppt with KI solution . About the given aqueous solution which of the following is incorrect ?

An aqueous solution contain either Hg_2^(2+) " or " Hg^(2+) the given solution given green ppt with KI solution . About the given aqueous solution which of the following is incorrect ?

The aqueous solution containing which one fo the following ions will be colourless ?

The aqueous solution containing which one of the following ion will be colourless ?

The aqueous solution of the following compounds which contains both ions and molecules is

An aqueous solution of hydrogen peroxide ions is

A flame test was performed to confirm the identity of a metal ion in solution. The result was a green flame. Which of the following metal ions is indicated?