p-Block elementsHard
Question
Amorphous boron of 95% to 98% purity is obtained by :
Options
A.heating B2O3 with H2.
B.heating B2O3 with Mg or Na at high temperature.
C.heating KBF4 with Na or K.
D.heating BBr3 with H2 in presence of a catalyst.
2B + 3MgO / Na2OMore p-Block elements Questions
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