Question

Complete the following reactions
$$\begin{gathered} \left(\mathrm{i}\right){\mathrm{Na}}_2{\mathrm{B}}_4{\mathrm{O}}_7.10{\mathrm{H}}_2\mathrm{O}\stackrel{∆}{\to } \\ \left(\mathrm{ii}\right)\mathrm{CoO}+{\mathrm{B}}_2{\mathrm{O}}_3\stackrel{∆}{\to } \\ \left(\mathrm{iii}\right){\mathrm{BF}}_3+{\mathrm{LiAlH}}_4\underset{\mathrm{ether}}{\overset{\mathrm{Diethyl}}{\to }} \\ \left(\mathrm{iv}\right){\mathrm{B}}_2{\mathrm{H}}_6+{\mathrm{O}}_2\to \\ \left(\mathrm{v}\right){\mathrm{B}}_3{\mathrm{N}}_3{\mathrm{H}}_6+{\mathrm{H}}_2\mathrm{O}\to \end{gathered}$$

Answer 1

The solution is as follows:


$$\begin{gathered} 1.N{a}_2{B}_4{O}_7.10H_{2}O\underset{∆}{\to }2NaB{O}_2+\hspace{0.17em}{B}_2{O}_3 \\ 2.CoO+\hspace{0.17em}{B}_2{O}_3\to Co(B{O}_2{)}_2 \\ 3.4B{F}_3+\hspace{0.17em}3LiAl{H}_4\to 3LiF+\hspace{0.17em}3Al{F}_3+\hspace{0.17em}2B_2{H}_6 \\ 4.B_2{H}_6+\hspace{0.17em}{O}_2\to B_2{O}_3+\hspace{0.17em}{H}_{2}O \\ 5.B_3{N}_3{H}_6+\hspace{0.17em}{H}_{2}O\to H_{3}B{O}_3+\hspace{0.17em}N{H}_3+\hspace{0.17em}{H}_2 \end{gathered}$$