Some Important Compounds of Boron

How many number of the following substances contains hexagonal planar rings in their structures?

Graphite, $(\mathrm{BN}{)}_{\mathrm{x}}, {\mathrm{B}}_3{\mathrm{N}}_3{\mathrm{H}}_6, {\mathrm{C}}_6{\mathrm{H}}_6$, ${\mathrm{B}}_2{\mathrm{H}}_6, {\mathrm{H}}_3{\mathrm{P}}_3{\mathrm{O}}_9$

An aqueous solution of borax is basic.

Which of the following reactions are shown by diborane?

Describe the structure of diborane. What is special about this structure?

What are the basic units of the larger structure of orthoboric acid? How are they bonded?

What is the formula of colemanite?

An unknown inorganic compound $\text{'}\mathrm{A}\text{'}$ on reduction with ${\mathrm{LiAlH}}_4$ produced a hydride product $\text{'}\mathrm{B}\text{'}$ (along with other by-products). The product $\text{'}\mathrm{B}\text{'}$ contains $21.72\%$ of hydrogen in it. The product $\text{'}\mathrm{B}\text{'}$ on exposure to air gave boron trioxide. The compounds $\text{'}\mathrm{A}\text{'}$ and $\text{'}\mathrm{B}\text{'}$ are:

With reference to diborane $\left({\mathrm{B}}_2{\mathrm{H}}_6\right),$ identify the correct statement. 

Borax reacts with concentrated $\mathrm{HCl}$ to produce a boron containing compound $\mathrm{X}$. Heating $\mathrm{X}$ with ${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}$ converts it into $\mathrm{Y}$, which gives green edged flame. Identify $\mathrm{X}$ and $\mathrm{Y}$.

A Lewis acid $\text{'}\mathrm{X}\text{'}$ reacts with ${\mathrm{LiAlH}}_4$ in ether medium to give a highly toxic gas. This gas when heated with ${\mathrm{NH}}_3$ gives a compound commonly known as inorganic benzene. The gas is

${\mathrm{H}}_3{\mathrm{BO}}_3$ is :

${\mathrm{B}}_2{\mathrm{H}}_6$ can't be prepared by :-

Which is correct for diborane :-

Diborane is readily hydrolysed by water to give _____ and hydrogen.

Name the products formed by the hydrolysis of diborane.

Write the equation for the hydrolysis of diborane ?

Explain banana bonds as three centre two electron bonds.

Compare banana bonds with single covalent bond.

Write the equation for the combustion of diborane ?