1.

Al_(2)O_(3) can be converted to anhydrous AlCl_(3) by heating

Answer»

`Al_(2)O_(3)` with `Cl_(2)` gas
`Al_(2)O_(3)` with HCl gas
`Al_(2)O_(3)` with `NACL` in solid state
a mixture of `Al_(2)O_(3)` and carbon in dry `Cl_(2)` gas

Answer :D


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