Question: 100% NCERT covered from Particular Keyword.Explanations are 100% from NCERT | [Difficult level: Easy] From NCERT NEET Derived Question.
An acidic solution of 'X' does not give precipitate on
passing H2S through it. 'X' gives white precipitate when
NH4OH is added to it. The white precipitate dissolves in
excess of NaOH solution. Pure 'X' fumes in air and dense
white fumes are obtained when a glass rod dipped in NH4OH
is put in the fumes. Compound 'X' can be
(a) ZnCl2 (b) FeCl3
(c) AlCl3 (d) SnCl2
Answer: a
