H3BO3 $\overset{\quad T_{1}\quad}{\rightarrow}$ X $\overset{\quad T_{2}\quad}{\rightarrow}$ Y $\over

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H3BO3 $\overset{\quad T_{1}\quad}{\rightarrow}$ X $\overset{\quad T_{2}\quad}{\rightarrow}$ Y $\overset{\quad redhot\quad}{\rightarrow}$ B2O3If T1 < T2 then X and Y respectively are

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Sol. K4​[Fe(CN)6​] when heated with concenterated H2​SO4​ gives CO. K4​[Fe(CN)6​]+6H2​SO4​+6H2​O→2K2​SO4​+FeSO4​+3(NH4​)2​SO4​+6COWhen reacted with boiling dilute H2​SO4​ it gives HCN.2K4​[Fe(CN)6​]+3H2​SO4​→3K2​SO4​+K2​Fe[Fe(CN)6​]+6HCN

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