$BCl_3$ exists as a monomer,whereas $AlCl_3$ is dimerized through halogen bridging. Give reason. Explain the structure of the dimer of $AlCl_3$ also.
$BCl_3$ does not dimerize because of the small size of the boron atom. Boron cannot accommodate four large-sized chloride ions around it due to steric hindrance.
$AlCl_3$ exists as a dimer in which $Al$ uses its vacant $3p$-orbital to coordinate with a $Cl$ atom from another $AlCl_3$ unit to complete its octet.
$AlCl_3$ achieves stability by forming a dimer,$Al_2Cl_6$,where two $Al$ atoms are bridged by two $Cl$ atoms. The structure consists of two $AlCl_4$ tetrahedra sharing a common edge.
$AlCl_3$ exists as a dimer in which $Al$ uses its vacant $3p$-orbital to coordinate with a $Cl$ atom from another $AlCl_3$ unit to complete its octet.
$AlCl_3$ achieves stability by forming a dimer,$Al_2Cl_6$,where two $Al$ atoms are bridged by two $Cl$ atoms. The structure consists of two $AlCl_4$ tetrahedra sharing a common edge.
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Similar Questions
What happens when:
$(a)$ Borax is heated strongly,
$(b)$ Boric acid is added to water,
$(c)$ Aluminium is treated with dilute $NaOH$,
$(d)$ $BF_{3}$ is reacted with ammonia?
$(a)$ Borax is heated strongly,
$(b)$ Boric acid is added to water,
$(c)$ Aluminium is treated with dilute $NaOH$,
$(d)$ $BF_{3}$ is reacted with ammonia?
Medium
View SolutionIdentify the correct statements from the following:
$a$) Borax gives blue coloured $Co(BO_2)_2$ when heated with $Co^{2+}$ salt.
$b$) The correct formula of Borax is $Na_2[B_4O_5(OH)_4] \cdot 8H_2O$.
$c$) Trihalides of boron are Lewis bases.
$a$) Borax gives blue coloured $Co(BO_2)_2$ when heated with $Co^{2+}$ salt.
$b$) The correct formula of Borax is $Na_2[B_4O_5(OH)_4] \cdot 8H_2O$.
$c$) Trihalides of boron are Lewis bases.
Which of the following statements is correct?
Easy
View SolutionThe first ionization enthalpy values (in $kJ\, mol^{-1}$) of group $13$ elements are:
Element $B$ $Al$ $Ga$ $In$ $Tl$ Ionization Enthalpy $801$ $577$ $579$ $558$ $589$
How would you explain this deviation from the general trend?
| Element | $B$ | $Al$ | $Ga$ | $In$ | $Tl$ |
|---|---|---|---|---|---|
| Ionization Enthalpy | $801$ | $577$ | $579$ | $558$ | $589$ |
How would you explain this deviation from the general trend?
Difficult
View SolutionThe number of acidic protons in $H_{3}PO_{3}$ is:
MediumWBJEE 2012
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