`E_(Al^(3+)//Al)^(*)=-1.66V` and `K_(SP)` of `Al(OH)_(3)=1.0xx10^(-33)` . Reduction potential of the above couple at `pH =14` is `:`A. `-2.31 V`B. `+2.31`C. `-1.01V`D. `+1.01V`

`E_(Al^(3+)//Al)^(*)=-1.66V` and `K_(SP)` of `Al(OH)_(3)=1.0xx10^(-33)

1.	`E_(Al^(3+)//Al)^(*)=-1.66V` and `K_(SP)` of `Al(OH)_(3)=1.0xx10^(-33)` . Reduction potential of the above couple at `pH =14` is `:`A. `-2.31 V`B. `+2.31`C. `-1.01V`D. `+1.01V`
Answer» Correct Answer - 1 `pH=14" "rArr" "[CH^(-)]=1M` `[Al^(3+)]=(K_(sp))/([OH^(-)]^(3))=10^(-33),Al^(3+)+3e^(-)rarr Al` `E_(cell)=E_(Al^(3+)//Al)^(@)-(0.0591)/(3)log.(1)/([Al^(3+)])`

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`E_(Al^(3+)//Al)^(*)=-1.66V` and `K_(SP)` of `Al(OH)_(3)=1.0xx10^(-33)` . Reduction potential of the above couple at `pH =14` is `:`A. `-2.31 V`B. `+2.31`C. `-1.01V`D. `+1.01V`

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