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(A) $AlCl_3$ is an electron-deficient compound because the $Al$ atom has only $6$ electrons in its valence shell. It exists as a dimer,$Al_2Cl_6$,in t

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Anhydrous and covalent.

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(A) $AlCl_3$ is an electron-deficient compound because the $Al$ atom has only $6$ electrons in its valence shell. It exists as a dimer,$Al_2Cl_6$,in the vapor state and non-polar solvents to complete its octet. Due to its electron-deficient nature,it acts as a strong Lewis acid. In its anhydrous form,it exhibits significant covalent character due to the high polarizing power of the $Al^{3+}$ ion (Fajans' rule).

$X$	$1$	$2$	$3$	$4$	$5$
$P(X=x)$	$k$	$2k$	$3k$	$2k$	$k$

$AlCl_3$ is ...

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