An acidic solution of ‘X’ does not give precipitate on passing H2S gas. ‘X’ gives a white precipitate when NH4OH is added to it. The white precipitate dissolves in excess of NaOHsolution. Pure ‘X’ fumes in air and dense white fumes are obtained when a glass rod dipped in NH4OH is held in the fumes. The compound ‘X’ is:

An acidic solution of ‘X’ does not give precipitate on passing H2S

1.	An acidic solution of ‘X’ does not give precipitate on passing H2S gas. ‘X’ gives a white precipitate when NH4OH is added to it. The white precipitate dissolves in excess of NaOHsolution. Pure ‘X’ fumes in air and dense white fumes are obtained when a glass rod dipped in NH4OH is held in the fumes. The compound ‘X’ is:
Answer» An acidic solution of ‘X’ does not give precipitate on passing $H_{2} S$ gas. ‘X’ gives a white precipitate when $N H_{4} O H$ is added to it. The white precipitate dissolves in excess of $N a O H$ solution. Pure ‘X’ fumes in air and dense white fumes are obtained when a glass rod dipped in $N H_{4} O H$ is held in the fumes. The compound ‘X’ is: