A) \[{{U}_{3}}{{O}_{8}}\]
B) \[U{{F}_{6}}\]
C) \[U{{O}_{2}}{{(N{{O}_{3}})}_{2}}\]
D) \[UC{{l}_{4}}\]
Correct Answer: A
Solution :
\[{{U}_{3}}{{O}_{8}}\] is uranite or pitch blende. It is a complex silicate containing uranium, lead, Th, Fe, Ca, Ra, Bi, Sb and Zn. Mainly uranium is an important nuclear fuel. \[\underset{\text{From}\,\text{the}\,\,\text{ore}}{\mathop{2{{U}_{3}}{{O}_{8}}}}\,+6N{{a}_{2}}C{{O}_{3}}+\underset{\begin{align} & from \\ & air \\ & or \\ & NaN{{O}_{2}} \\ & 6N{{a}_{2}}U{{O}_{4}}+6C{{O}_{2}} \\ & Sos.\,uranate \\ \end{align}}{\mathop{{{O}_{2}}}}\,\xrightarrow{roasting}\]
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