Q.
Statement I : Boric acid burnt with ethyl alcohol in green edged flame.Statement II : Boric acid when burnt with ethyl alcohol it forms tri ethyl orthoborate.
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a
Both Statements are true
b
Statement I is true Statement II is false
c
Statement I is false and Statement II is true
d
Both Statements are false
answer is A.
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Detailed Solution
ORWhen ortho boric acid is burnt with ethyl alcohol in presence of Conc H2SO4 gives triethyl ortho borate.When the vapours of triethyl borate ignited burn with a green edged flame.The green edged flame is due to the combustion of ethyl borate.This test is used to detect the borates and boric acid in qualitative analysis.
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