A light green coloured salt soluble in water gives black percipitate on passing H_(2)S which dissolves readily in HCl. The metal ion present is :

A light green coloured salt soluble in water gives black percipitate o

1.	A light green coloured salt soluble in water gives black percipitate on passing H_(2)S which dissolves readily in HCl. The metal ion present is :
Answer» `Co^(2+)` `Zn^(2+)` `NI^(2+)` `Mn^(2+)` Solution :`Ni^(2+) + H_(2)S RARR underset(("BLACK ppt"))(NIS) overset(2HCl)rarr underset(("Soluble"))(NiCl_(2)) + H_(2)S`