Question:
Uranium extraction involves preparation of uranium tetrafluoride by hydrofluorination from:
Uranium extraction involves preparation of uranium tetrafluoride by hydrofluorination from:
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UF$_4$ is called “green salt” and is precursor to uranium metal production.
Updated On: Jun 29, 2026
- Uranium dioxide
- Uranyl nitrate
- Uranium trioxide
- Uranium phosphate
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The Correct Option is A
Solution and Explanation
Concept:
In uranium extraction (nuclear metallurgy), UF$_4$ (green salt) is an important intermediate.
It is prepared by hydrofluorination reaction:
\[
UO_2 + 4HF \rightarrow UF_4 + 2H_2O
\]
Step 1: Identify starting compound.
The standard industrial route starts from uranium dioxide: \[ UO_2 \]
Step 2: Reaction mechanism.
HF reacts with oxide to form fluoride: - oxygen removed as water - uranium converted to UF$_4$ Final Answer: \[ \boxed{\text{Uranium dioxide}} \]
Step 1: Identify starting compound.
The standard industrial route starts from uranium dioxide: \[ UO_2 \]
Step 2: Reaction mechanism.
HF reacts with oxide to form fluoride: - oxygen removed as water - uranium converted to UF$_4$ Final Answer: \[ \boxed{\text{Uranium dioxide}} \]
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