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प्रश्न
How will you identify borate radical?
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उत्तर
When boric acid or borate salt is heated with ethyl alcohol in presence of concentrated H2SO4, an ester triethyl borate is formed. The Vapour of this ester burns with a green-edged flame and this reaction is used to identify the presence of borate.
\[\ce{4H3BO3 + 3C2H5OH ->[con. H2SO4] \underset{\text{(Triethyl borate)}}{B(OC2H5)3} + 3H2O}\]
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