Questions
Boric acid when burnt with ethyl-alcohol gives a green edged flame due to the combustion of ____?
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By Expert Faculty of Sri Chaitanya
a
Boric anhydride
b
Meta-boric acid
c
Tri-ethyl borate
d
Ortho boric acid
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Correct option is C
Following is the reactionBOH3+3C2H5OH→HeatH2SO4BOC2H53+3H2OTri-ethyl borate burns with a green edge flame.
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