Consider the following statements with respect to uranium
\[ \begin{array}{l} \text{(A) } \mathrm{UO_2^{+}} \text{ disproportionates more easily than } \mathrm{UO_2^{2+}} \\ \text{(B) } \mathrm{U_3O_8} \text{ is its most stable oxide of U} \\ \text{(C) Coordination number of U in } [\mathrm{UO_2(NO_3)_2(H_2O)_2}]\cdot 4\mathrm{H_2O} \text{ is six.} \\ \text{(D) } \mathrm{UO_2^{2+}} \text{ is linear} \end{array} \]
The correct set of statements is
(a)A, B and D
(b)A, C and D
(c)B, C and D
(d)A, B and C
Answer
Answer: A ✓ checked by 4AB · confidence medium
Explanation
UO₂⁺ disproportionates readily, U₃O₈ is the most stable oxide, and uranyl is linear O=U=O. In [UO₂(NO₃)₂(H₂O)₂], U is 8-coordinate (hexagonal bipyramid), so (C) is false. A, B and D (a).