An inorganic compound (A) is a Lewis acid an d light yellow in colour. It fumes in moist air. The intensity of fumes further increase when a rod dipped in NH_(4)OH is brough near it. The aciedic solution of the compound does not give andy precipitate on passing H_(2)S gas. However, it gives a white precipitate on adding NH_(4)OH solution in the presence of NH_(4)Cl and the white precipitate dissovles on adding NaOH in excess. The intensity of fumes increases due to the formation of

An inorganic compound (A) is a Lewis acid an d light yellow in colour.

1.	An inorganic compound (A) is a Lewis acid an d light yellow in colour. It fumes in moist air. The intensity of fumes further increase when a rod dipped in NH_(4)OH is brough near it. The aciedic solution of the compound does not give andy precipitate on passing H_(2)S gas. However, it gives a white precipitate on adding NH_(4)OH solution in the presence of NH_(4)Cl and the white precipitate dissovles on adding NaOH in excess. The intensity of fumes increases due to the formation of
Answer» ammonium HYDROXIDE ammonum chloride ammonium sulphate excess of HCl vapours SOLUTION :INTENSITY of fumes INCREASES when `NH_(4)OH`reacts with `AlCl_(3)` due to formation of `NH_(4)Cl` . `AlCl_(3)+3NH_($)OHrarrAl(OH)_(3)+3NH_(4)Cl`.