Chemistry · Transition Elements and Metallurgy
At what temperature threshold is the refractory metal tantalum almost completely immune to chemical attacks by most aggressive acids (such as aqua regia)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Above 1000°C
- 2Above 500°C
- 3Below 350°C
- 4Below 150°C✓
Correct answer
Below 150°C
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