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प्रश्न
How will you identify borate radical?
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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