An inorganic lewise acid (X) fumes in moist air, and intensity of fumes increases when a red dippole in `NH_(4)OH` is thrugh t near to it .An acidic solution of (X) on addition of `NH_(4)CI` and `NH_(4)OH` gives a percipitate which dissolve in `NaOH` solution .An acidic, solution of (X) does not give precipitate with `H_(2)S` Hence , the compound (X) isA. `FeCI_(3)`B. `AICI_(3)`C. `SnCI_(2)`D. `ZnCI_(2)`

An inorganic lewise acid (X) fumes in moist air, and intensity of fume

1.	An inorganic lewise acid (X) fumes in moist air, and intensity of fumes increases when a red dippole in `NH_(4)OH` is thrugh t near to it .An acidic solution of (X) on addition of `NH_(4)CI` and `NH_(4)OH` gives a percipitate which dissolve in `NaOH` solution .An acidic, solution of (X) does not give precipitate with `H_(2)S` Hence , the compound (X) isA. `FeCI_(3)`B. `AICI_(3)`C. `SnCI_(2)`D. `ZnCI_(2)`
Answer» Correct Answer - b `(X)` is `AICI_(3)` `underset("Mostone")(AICI_(3)) + 3H_(2)O rarr AI(OH)_(3) darr + underset(("Fumes"))(3HCI) ` `AICI_(3)+3NH_(4)OH rarr AI(OH)_(3) darr + 3NH_(4)CI` `AI(OH)_(3) + NaOH rarr NaAIO_(2) + 2H_(2)O` `AICI_(3) + H_(2)S + H^(o+) rarr` No ppt

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