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Aliminium rects with NaOH and forms copm...

Aliminium rects with NaOH and forms copmpund 'X' . IF the coordination number of aluminimum in 'X' is 6, the correct formula of X is

A

`[A](H_2O)_4(OH)_2]^+`

B

`[A1(H_2O)_3(OH)_3]`

C

` [A1(H_2O)_2]^-`

D

` [Al(H_2O)_6](OH)_3`

Text Solution

Verified by Experts

The correct Answer is:
(c
`2Al +2NaOH + 2H_2O` to `2NaAlO_2 + 3H_2`
`NaAlO_2` formed in the above reaction dissolve in water to form `[Al(H_2O)_2 (OH)_4]` in in which the coordination number of aluminium is 6.
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