In the structure of borax, the numbers of boron atoms and B-O-B units, respectively, are :
Borax is actually made of two tetrahedra and two triangular units joined together and should be written as: Na2[B4O5(OH)4]·8H2O
The correct statement/s about borax is/are:
a. Each boron atom has four B-O bonds
b. Each boron atom has three B-O bonds
c. Two boron atoms have four B-O bonds while other two have three B-O bonds
d. Each boron atom has one -OH groups
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___