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When CO(2) is passed through solution of...

When `CO_(2)` is passed through solution of sodium meta aluminate, precipiate of which compound is formed -

A

`Al(OH)_(3)`

B

`Al_(2)O_(3)`

C

`Na_(2)CO_(3)`

D

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Text Solution

Verified by Experts

The correct Answer is:
A
In Hall's process, for purifying the bauxite ore, the solution containing sodium metaaluminate is warmed to `50^(@)C-60^(@)C`. Carbon dioxide is circulated through it and `Al(OH)_(3)` separates out as precipitate.
`2NaAlO_(2)+CO_(2)+3H_(2)Orarr2Al(OH)_(3)+Na_(2)CO_(3)`
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