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JEE Main levelSingle correct optionDifficulty 2 of 3df192

A volatile compound used in the gaseous diffusion or centrifuge enrichment of uranium isotopes is

A $U X_{3} O X_{8}$
B $UF X_{6}$
C $UF X_{4}$
D $UO X_{2}$

Answer: B

UF X_{6}

sublimes at a low temperature and so can be handled as a gas, allowing separation of the isotopes by their small mass difference.

UO X_{2}

,

U X_{3} O X_{8}

and

UF X_{4}

are non-volatile solids.

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