Explain what happens when boric acid is heated.
(N/A) On heating orthoboric acid $(H_3BO_3)$ at $370 \, K$ or above,it loses a water molecule to form metaboric acid $(HBO_2)$.
On further heating at red heat,it loses more water to yield boric oxide $(B_2O_3)$.
The reactions are as follows:
$H_3BO_3 \xrightarrow[370 \, K]{\Delta} HBO_2 + H_2O$
$2HBO_2 \xrightarrow[red \, hot]{\Delta} B_2O_3 + H_2O$
On further heating at red heat,it loses more water to yield boric oxide $(B_2O_3)$.
The reactions are as follows:
$H_3BO_3 \xrightarrow[370 \, K]{\Delta} HBO_2 + H_2O$
$2HBO_2 \xrightarrow[red \, hot]{\Delta} B_2O_3 + H_2O$
Explore More
Similar Questions
$A$ nonmetallic element of group $13$,used in making bulletproof vests,is an extremely hard solid of black colour. It can exist in many allotropic forms and has an unusually high melting point. Its trifluoride acts as a Lewis acid towards ammonia. The element exhibits a maximum covalence of four. Identify the element and write the reaction of its trifluoride with ammonia. Explain why the trifluoride acts as a Lewis acid.
Medium
View SolutionGive important trends and anomalous properties of boron.
Medium
View SolutionBorax dissolves in water and forms a product of boron $(X)$. Identify the compound $X$.
Which of the following compounds are formed when boron trichloride is treated with water?
Which element belongs to the family of elements that also includes the element gallium?
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo