The structure of diborane $(B_2H_6)$ contains :-

In the following reaction,assign the correct category for the underlined atom in the product of complete hydrolysis at $R.T.$:
$\underline{I}Cl_3 + H_2O \longrightarrow HIO_2 + HCl$

In $B_2H_6$:

Diborane reacts with ammonia to form $X$,which on heating gives $H_2$ and borazine. $X$ is

$A$ Lewis acid '$X$' reacts with $LiAlH_4$ in ether medium to give a highly toxic gas,'$Y$'. '$Y$' when heated with $NH_3$ gives a compound known as inorganic benzene. '$Y$' burns in oxygen and gives $H_2O$ and '$Z$'. '$Z$' is

Which of the following reactions is used to prepare borazine?