Solve this multiple-choice question and choose the correct option.

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Minerals and elements: Radium is obtained from which ore/mineral? Recall its historical extraction source alongside uranium. Choose the correct mineral.

Difficulty: Easy

Pitchblende (uraninite)
Rutile
Haematite
Limestone

Correct Answer: Pitchblende (uraninite)

Explanation:

Given data

Element: Radium (Ra).

Concept/Approach Radium occurs as a trace decay product in uranium ores, especially pitchblende (uraninite). Curie's original isolation was from pitchblende residues.

Final Answer Pitchblende (uraninite)

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