What is a fusion mixture?

The salt which finds uses in qualitative inorganic analysis is

On performing a borax-bead test with a given inorganic mixture for qualitative analysis,the colour of the bead was found to be emerald green both in oxidising and reducing flame. It indicates the possibility of the presence of

Which pair of cations can be identified by the borax bead test?

Identify the last step in wet chemical synthesis of nanomaterial.

Which of the following salts is used in the bead test for the qualitative analysis of inorganic substances?