Identify the correct statements from the following :
$I$. $Ga_2O_3$ is an amphoteric oxide.
$II$. The dimer of aluminium chloride has three $Al-Cl-Al$ bridge bonds.
$III$. Boron is a very hard refractory solid of high melting temperature.

  • A
    $I$,$II$ only
  • B
    $I$,$III$ only
  • C
    $II$,$III$ only
  • D
    $I$,$II$,$III$

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