The incorrect statement from the following for borazine is:

Statement-$1$: Orthoboric acid acts as a weak monobasic acid in water.
Statement-$2$: Orthoboric acid acts as a proton donor in water.

$A$ group $13$ element '$X$' reacts with chlorine gas to produce a compound $XCl_3$. $XCl_3$ is electron deficient and easily reacts with $NH_3$ to form $Cl_3X \leftarrow NH_3$ adduct,however,$XCl_3$ does not dimerize. $X$ is

Which of the following statements is/are correct for group $13$ elements?
$A$. $Al$ reacts with dil. $HCl$ to liberate $H_2$ gas
$B$. $Al$ reacts with conc. $HNO_3$ to liberate $H_2$ gas
$C$. Boron reacts with only acids to liberate $H_2$ gas
$D$. Anhydrous $AlCl_3$ reacts with moisture to liberate $H_2$ gas

Which of the following substances is formed when $BCl_3$ reacts with water?

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