Nuclear Power Engineering
Fast breeder reactors do not

Use molten sodium as coolant
Use Th-232 as fissile fuel
Convert fertile material to fissile material
Use fast neutrons for fission

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Nuclear Power Engineering
Molten sodium (as a coolant in fast breeder reactor)

Can't attain high temperature at normal pressure
Is highly radioactive at elevated temperatures and can cause explosion, when it comes in contact with air or water
Is not at all corrosive, even at a higher temperature
None of these

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