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Rhenium (Re) — rarity, catalysts and isotopes: Multiple Choice
Preview · 10 questions
- 01Approximately how common is rhenium in Earth's crust relative to other elements?
- 02Rhenium is widely used in catalysis for which petroleum-refining process?
- 03Which rhenium oxide is commonly encountered and related to perrhenic acid?
- 04Rhenium is classified as which block of the periodic table?
- 05Which of the following is a major industrial use of rhenium as an additive?
- 06Rhenium is often alloyed with which metal to make high-temperature superalloys for turbine blades?
- 07Which pair represents the two naturally occurring isotopes of rhenium?
- 08Which organometallic compound of rhenium is known as a practical oxidation catalyst (MTO)?
- 09Which oxidation state is common for rhenium in perrhenic acid and Re2O7?
- 10Which atomic number corresponds to rhenium?