Separation of the isotopes of uranium requires a physical ra

Separation of the isotopes of uranium requires a physical, rather than chemical, method because: mixing other chemicals with uranium is too dangerous the isotopes are chemically the same the isotopes have exactly the same number of neutrons per nucleus natural uranium contains only 0.7% U uranium is the heaviest element in nature

Solution

Different chemical elements can be purified through chemical processes but isotopes of the same element have nearly identical chemical properties, which makes this type of separation impractical.

So the answer will be oprion (b)