Explain what happens when boric acid is heated.
Explain what happens when boric acid is heated.
On heating orthoboric acid $\left(\mathrm{H}_{3} \mathrm{BO}_{3}\right)$ at $370 \mathrm{~K}$ or above, it changes to metaboric acid $\left(\mathrm{HBO}_{2}\right)$. On further heating, this yields boric oxide $\mathrm{B}_{2} \mathrm{O}_{3}$.
$\mathrm{H}_{3} \mathrm{BO}_{3} \stackrel{370 \mathrm{~K}}{\longrightarrow} \mathrm{HBO}_{2} \longrightarrow \mathrm{B}_{2} \mathrm{O}_{3}$
Similar Questions
Below are two statements, one labeled as Assertion $(A)$ and the other as Reason $(R):$
Assertion $(A)$: Among group $13$ elements, boron's melting point is unusually high $(2453 \mathrm{~K})$.
Reason $(R):$ Solid boron has a strong crystalline lattice.
In the context of the above statements, choose the correct answer from the following options:
Below are two statements, one labeled as Assertion $(A)$ and the other as Reason $(R):$
Assertion $(A)$: Among group $13$ elements, boron's melting point is unusually high $(2453 \mathrm{~K})$.
Reason $(R):$ Solid boron has a strong crystalline lattice.
In the context of the above statements, choose the correct answer from the following options:
- [JEE MAIN 2024]
$Al$ having double conductivity as compared to which metal ?
$Al$ having double conductivity as compared to which metal ?
In $LiAlH_4,$ metal $Al$ is present in
In $LiAlH_4,$ metal $Al$ is present in
Aluminium is obtained by
Aluminium is obtained by
In the reaction ${B_2}{O_3} + C + C{l_2} \to A + CO.$ The $A$ is
In the reaction ${B_2}{O_3} + C + C{l_2} \to A + CO.$ The $A$ is