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

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 $\mathrm{Cu}_{2}\left(\mathrm{~S} \mathrm{O}_{3}\right)_{3}$ $\mathrm{CuS}_{2}$ $\mathrm{CuSO}_{3}$
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Solution

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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 Cu+\mathrm{Cu}^+ and sulfide ion is represented as S2\mathrm{S}^{2-}. To balance the charges, two copper ions are needed for every sulfide ion, resulting in the formula Cu2S\mathrm{Cu}_2\mathrm{S}.

Step 3: Matching with Given Options

Among the given options, Cu2S\mathrm{Cu}_2\mathrm{S} matches the formula derived for copper (I) sulfide.

Final Answer

Cu2S \boxed{\mathrm{Cu}_2\mathrm{S}}

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