A Chromium(III)ion Forms a Complex Ion with Two Ammonia Molecules

question 89

Multiple Choice

A chromium(III) ion forms a complex ion with two ammonia molecules and four thiocyanate ions.What is the formula of the complex ion?

• A)[Cr(NH₃)₂(NCS)₄]³⁺
• B)[Cr(NH₄)₂(NCS)₄]⁺
• C)[Cr(NH₃)₂(NCS)₄]^-
• D)[Cr(NH₃)₂(NCS)₄]^4-

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