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\[
\mathrm{BF}_{3}+\mathrm{LiAlH}_{4} \longrightarrow \mathrm{X} \stackrel{\mathrm{NH}_{3}}{\Delta} \mathrm{Y} \stackrel{450 \mathrm{~K}}{\longrightarrow}
\]
Inorganic Benzene.
(A) The compound \( \mathrm{X} \) is \( \mathrm{B}_{2} \mathrm{O}_{3} \)
(B) Inorganic Benzene is \( \mathrm{B}_{3} \mathrm{~N}_{3} \mathrm{H}_{6} \)
(C) \( \mathrm{X} \) is \( \mathrm{B}_{2} \mathrm{H}_{6} \) and \( \mathrm{Y} \) is \( \left[\mathrm{BH}_{2}\left(\mathrm{NH}_{3}\right)_{2}\right]+\left[\mathrm{BH}_{4}\right] \)
(D) \( \mathrm{X} \) is \( \mathrm{LiBH}_{4} \) and \( \mathrm{Y} \) is \( \mathrm{B}_{2} \mathrm{H}_{6} .2 \mathrm{NH}_{3} \).
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