Question

The silver necklace after using for some time becomes black. This is due to the formation of:

• A. $A{g}_{2}O$
• B. $AgBr$
• C. $AgI$
• D. $A{g}_{2}S$

Answer 1

The correct option is D $A{g}_{2}S$

Silver necklace becomes black in colour due to formation of $A{g}_{2}S$. Since Ag reacts with $H_{2}S$ present in atmosphere to form$A{g}_{2}S$.