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Pyrotechnics (colors of flames): In fireworks, which element's compounds produce a bright green flame? Focus on standard color-producing metal salts used in pyrotechnic compositions. Choose the correct element.

Difficulty: Easy

Barium compounds (e.g., barium nitrate)
Strontium compounds
Copper compounds
Sodium compounds

Correct Answer: Barium compounds (e.g., barium nitrate)

Explanation:

What is being asked?
Which metal salts are responsible for the characteristic green color in fireworks.

Given data

Domain: pyrotechnics

Concept/Approach
Barium salts (such as Ba(NO₃)₂) emit green. Strontium → red; copper → blue/blue-green; sodium → yellow.

Final Answer
Barium compounds

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