The crystalline form of borax has

1.	The crystalline form of borax has
Answer» tetrabnuclear `[B_(4)O_(5)(OH)_(4)]^(2-)` UNIT all BORON atomsin the same plane equal number of `sp^(2)` and `sp^(3)` hybridized boron atoms one terminal hydroxide per boron atom Solution :It CONTAINS tetranuclear `[B_(4)O_(5)(OH)_(4)]^(2-)`unitshaving two `sp^(2)`and two `sp^(3)`-hybridizedboronatoms. It alsocontains one terminalhydroxide per boron unit. THUS, option (b)which states that all boronatoms lie in the same plane is wrongsince allthe boron atoms are not `sp^(2)`-hybridized . Thus,all the remaining(a,C,d) optionsare correct.

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