In B₂H₆ 

(1) there is direct boron-boron bond

(2) the structure is similar to that of C₂H₆

(3) the boron atoms are linked through hydrogen bridges

(4) all the atoms are in one plane

From the B₂H₆ all the following can be prepared except:

(1) H₃BO₃

(2) [BH₂(NH₃)₂]+ [BH₄]-

(3) B₂(CH₃)₆

(4) NaBH₄

Which of the following Group 13 elements cannot form the hexafluoro complex ion [MF₆]³⁻?

Which of the following is responsible for the polymeric nature of boric acid?

1. Its acidic nature

2. Presence of hydrogen bonds

3. Its monobasic nature

4. Its geometry

The product formed in the reaction,

$BC{l}_3+H_{2}O\to$Product is:

(1) $H_{3}B{O}_3+HCl$

(2) $B_2{O}_3+HOCl$

(3) $B_2{H}_6+HCl$

(4) no reaction