Question

Give one word for the following.

A metal which burns with a non-persistent green flame in air or oxygen.

Answer 1

• Flame test is a method of analyzing the chemical compound.
• The compound may be an organic or an inorganic compound in the form of salt, liquid or metal compounds.
• The substance to be analyzed is either mixed with a solvent or directly exposed to flame – Bunsen burner.
• The metal burning with a non-persistent green flame is Copper (Cu).
• The chemical composition of a compound reacts differently when exposed to flame. Each compound has an unique color and reaction, some burn with a sparkling flame, some burn emitting a lot of smoke, some with a sizzling sound, etc .
• Examples: Calcium salt emits brick red flame (Flame test), Barium burns as green flame. (Flame test).
• Conclusion: A metal which burns with a non-persistent green flame in air or oxygen is Copper.