An inorganic Lewis acid `(X)` shows the following reactions :  (a) It fumes in moist air.  (b) The
Channel: Doubtnut
Date: 2020-07-26

An inorganic Lewis acid `(X)` shows the following reactions :  (a) It fumes in moist air.  (b) The intensity of fumes increase when a rod dippod in `NH_(4) OH` is brought near it.  ( c) To an aqueous solution of `(X)`, addition of `NH_(4)Cl` and `NH_(4)OH` gives a precipitate which dissolves in `NaOH` solution.  (d) An acidic solution of `(X)` does not give a precipitate with `H_(2) S`.  Identify `(X)` and gives chemical reactions for `(a)` to `(d)`.