The number of sp3 hybridised boron atoms in borax are
In the tetranuclear unit of borax [B4O5(OH)4]2−, the number of B – O – B bridges formed between sp3 boron & sp2 boron is ‘x’ and the number B-O-B bridges formed between sp3 boron & sp3 boron is ‘y’. Then (x – y) is___
The number of sp2 hybridised boron atoms in borax are