As Ethylenediamine Is Added to an Aqueous Solution of [Ni(H₂O)₆]²⁺,the

question 52

Multiple Choice

As ethylenediamine is added to an aqueous solution of [Ni(H₂O) ₆]²⁺,the water molecules are replaced two at a time by ethylenediamine to produce the sequence of ions: [Ni(H₂O) ₆]²⁺,[Ni(en) (H₂O) ₄]²⁺, [Ni(en) ₂(H₂O) ₂]²⁺,and [Ni(en) ₃]²⁺.How does the color change through the sequence?

• A)The color changes toward red with the addition of ethylenediamine.
• B)The color changes toward purple with the addition of ethylenediamine.
• C)Red,yellow,purple,blue with the addition of ethylenediamine.
• D)There is no color change with the addition of ethylenediamine.
• E)The color change cannot be predicted with the addition of ethylenediamine.

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