Boron cannot form which one of the following anions ?
$BF_6^{3-}$
$BH_4^-$
$B(OH)_4^-$
$BO_2^-$
Boron cannot form $B F_{6}^{3-}$ due to non-availability of $d$ -orbitals.
The correct order of atomic radii in group $13$ elements is
Aluminium $(III)$ chloride forms a dimer because
The correct statement$(s)$ for orthoboric acid is/are
$(A)$ It behaves as a weak acid in water due to self ionization.
$(B)$ Acidity of its aqueous solution increases upon addition of ethylene glycol.
$(C)$ It has a three dimensional structure due to hydrogen bonding.
$(D)$ It is weak electrolyte in water.
Boron is unable to form $BF_{6}^{3-}$ on. Explain.
The number of neutrons present in the more abundant isotope of boron is ' $\mathrm{x}$ '. Amorphous boron upon heating with air forms a product, in which the oxidation state of boron is ' $y$ '. The value of $x+y$ is …
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