First slide

13th group or boron group

Question

Boric acid when burnt with ethylalcohol gives a green edged flame due to the combustion of

Moderate

A

Boric an hydride
B

Metaboric acid
C

Triethyl borate
D

Ortho boric acid

Solution

$B {(OH)}_{3} + 3 C_{2} H_{5} OH \to_{Heat}^{H_{2} {SO}_{4}} B {({OC}_{2} H_{5})}_{3} + 3 H_{2} O$

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