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Question
Identify the compounds A, X and Z in the following reactions:
\[\ce{X ->[Δ][370 K] HBO2 ->[Δ][> 370 K] Z}\]
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Solution
\[\ce{\underset{(X)}{H3BO3} ->[Δ, 370 K] \underset{Metaboric acid}{HBO2} + H2O}\]
\[\ce{4HBO2 ->[Δ, 370 K][-H2O] \underset{Tetraboric acid}{[H2B4O7]} ->[Read heat] \underset{Boric trioxide (Z)}{2B2O3} + H2O}\]
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