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 $\mathrm{B}_{2} \mathrm{O}_{3}$.
$\mathrm{H}_{3} \mathrm{BO}_{3} \stackrel{370 \mathrm{~K}}{\longrightarrow} \mathrm{HBO}_{2} \longrightarrow \mathrm{B}_{2} \mathrm{O}_{3}$
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Which is not true about borax?
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Identify the correct statement for $B _{2} H _{6}$ from those given below.
$(A)$ In $B _{2} H _{6}$, all $B - H$ bonds are equivalent.
$(B)$ In $B _{2} H _{6}$ there are four $3-$centre$-2-$electron bonds.
$(C)$ $B _{2} H _{6}$ is a Lewis acid.
$(D)$ $B _{2} H _{6}$ can be synthesized form both $BF _{3}$ and $NaBH _{4}$.
$(E)$ $B _{2} H _{6}$ is a planar molecule.
Choose the most appropriate answer from the options given below..... .
Identify the correct statement for $B _{2} H _{6}$ from those given below.
$(A)$ In $B _{2} H _{6}$, all $B - H$ bonds are equivalent.
$(B)$ In $B _{2} H _{6}$ there are four $3-$centre$-2-$electron bonds.
$(C)$ $B _{2} H _{6}$ is a Lewis acid.
$(D)$ $B _{2} H _{6}$ can be synthesized form both $BF _{3}$ and $NaBH _{4}$.
$(E)$ $B _{2} H _{6}$ is a planar molecule.
Choose the most appropriate answer from the options given below..... .
- [JEE MAIN 2022]
How would you explain the lower atomic radius of $Ga$ as compared to $Al$ ?
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Which is not obtained when metal carbides react with $H_2O$ ?
Which is not obtained when metal carbides react with $H_2O$ ?