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Al(2)O(3) can be converted to anhydrous ...

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

A

a mixture of `Al_(2)O_(3)` and carbon in dry `Cl_(2)` gas

B

`Al_(2)O_(3)` with `Cl_(2)` gas

C

`Al_(2)O_(3)` and `HCl` gas

D

`Al_(2)O_(3)` with `NaCl` in solid state

Text Solution

Verified by Experts

The correct Answer is:
A
`Al_(2)O_(3)+3C+3C_(2)overset(1000^(@)C)to 2AlCl_(3)+underset("vapours")+3CO`
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Anhydrous AlCl_(3) is obtained when :

Adding Cl_(2) to benzene in the presence of anhydrous AlCl_(3) is an example of

Al_(2)O_(3) reacts with

Which reaction cannot give anhydrous AlCl_(3) :

Knowledge Check

  • Anhydrous AlCl_(3) is obtained when :

    A
    Aluminium oxide reacts with `HCl`
    B
    Aluminium reacts with `HCl`
    C
    Aluminium is heated in a current of dry `Cl_(2)`
    D
    Aluminium hydroxide reacts with `HCl`.

  • B_(2)O_(3) can be converted to BCl_(3) by heating

    A
    `B_(2)O_(3)` with `Cl_(2)` gas in the presence of `SiO_(2)`
    B
    `B_(2)O_(3)` with `HCl` gas
    C
    `B_(2)O_(3)` with `NaCl` in solid state
    D
    A mixture of `B_(2)O_(3)` and Carbon in dry `Cl_(2)` gas

  • Al_(2)O_(3) becomes anhydrous AlCl_(3) upon heating

    A
    with `NaCl`
    B
    with dry `Cl_(2)` and C
    C
    with `Cl_(2)`
    D
    with dry `HCl` gas