In the following reaction:
B(OH)3 is a Lewis acid
B(OH)2 is accepting negative charge (OH–). So it acting as Lewis acid.
Aqueous solution of borax reacts with two mole of acids.
This is because of:
While testing , there is green-edged flame on heating the salt with conc. H2SO4 and CH3OH. Green colour is of:
The gaseous product(s) expected at room temperature by reaction of sodium boronhydride and boron tri-fluoride under anhydrous condition is (are):
The oxide that gives H2O2 on treatment with a dilute acid is: