Question

Borax is actually made of two tetrahedra and two triangular units joined together and should be written as: Na₂[B₄O₅ (OH)₄ ]·8H₂O 

Consider the following statements about borax: 

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 Select correct statement(s): 

(A) a, b 

(B) b, c 

(C) c, d 

(D) a, c

Answer 1

Correct Answer : C. Two boron atoms have four B–O bonds while other two have three B–O bonds, Each boron atom has one –OH groups