Questions: The formula of copper (I) sulfide is: Cu3(SO3)2 Cu2S CuS Cu2SO3 None of these Cu2(SO3)3 CuS2 CuSO3

Transcript text: The formula of copper (I) sulfide is: $\mathrm{Cu}_{3}\left(\mathrm{~S} \mathrm{O}_{3}\right)_{2}$ $\mathrm{Cu}_{2} \mathrm{~S}$ CuS $\mathrm{Cu}_{2} \mathrm{SO}_{3}$ None of these $\mathrm{Cu}_{2}\left(\mathrm{~S} \mathrm{O}_{3}\right)_{3}$ $\mathrm{CuS}_{2}$ $\mathrm{CuSO}_{3}$

Solution

Solution Steps

Step 1: Understanding Copper (I) Sulfide

Copper (I) sulfide is a compound consisting of copper in the +1 oxidation state and sulfur. The chemical formula for copper (I) sulfide is derived from the charges of the ions involved.

Step 2: Determining the Formula

Copper (I) ion is represented as $\mathrm{Cu}^+$ and sulfide ion is represented as $\mathrm{S}^{2-}$. To balance the charges, two copper ions are needed for every sulfide ion, resulting in the formula $\mathrm{Cu}_2\mathrm{S}$.

Step 3: Matching with Given Options

Among the given options, $\mathrm{Cu}_2\mathrm{S}$ matches the formula derived for copper (I) sulfide.