Diborane on hydrolysis gives a compound X. Th | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The hydrolysis of diborane $(B_2H_6)$ is represented by the reaction: $B_2H_6 + 6H_2O \rightarrow 2H_3BO_3 + 6H_2$. Thus, the compound $X$ is orth

Vedclass · Accepted Answer

$II$ & $III$

Vedclass · Answer

(B) The hydrolysis of diborane $(B_2H_6)$ is represented by the reaction: $B_2H_6 + 6H_2O \rightarrow 2H_3BO_3 + 6H_2$. Thus, the compound $X$ is orthoboric acid $(H_3BO_3)$. Regarding the properties of $H_3BO_3$: $I$. It is a weak monobasic acid, not a tribasic acid, because it acts as a Lewis acid by accepting an $OH^-$ ion from water: $B(OH)_3 + 2H_2O \rightarrow [B(OH)_4]^- + H_3O^+$. $II$. This statement is correct. $III$. It has a layer structure in the solid state where planar $BO_3$ units are linked by hydrogen bonds. This statement is correct. $IV$. It is sparingly soluble in cold water but its solubility increases with temperature. Thus, it is not considered 'highly' soluble. Therefore, the correct statements are $II$ and $III$.

List-$I$ (Group $13$ element)	List-$II$ (Metallic radius,$pm$)
$A$. $Al$	$I$. $135$
$B$. $Ga$	$II$. $143$
$C$. $In$	$III$. $170$
$D$. $Tl$	$IV$. $167$

Diborane on hydrolysis gives a compound $X$. The correct statements about $X$ are
$I$. It is a tribasic acid
$II$. It is a weak monobasic acid
$III$. It has a layer structure
$IV$. It is highly soluble in water

Similar Questions

The incorrect statement regarding '$X$' in the given reaction is $BF_3 + LiAlH_4 \xrightarrow{\text{Ether}} (X) + LiF + AlF_3$.

Is boric acid a protic acid? Explain.

Aluminium hydroxide is soluble in excess of sodium hydroxide forming the ion

An element $X$ which occurs in the first short period has an outer electronic structure $s^2p^1$. What are the formula and acid-base character of its oxides?

Match the following:
List-$I$ (Group $13$ element) List-$II$ (Metallic radius,$pm$)
$A$. $Al$ $I$. $135$
$B$. $Ga$ $II$. $143$
$C$. $In$ $III$. $170$
$D$. $Tl$ $IV$. $167$

The correct answer is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Diborane on hydrolysis gives a compound $X$. The correct statements about $X$ are$I$. It is a tribasic acid$II$. It is a weak monobasic acid$III$. It has a layer structure$IV$. It is highly soluble in water