Two Complex Ions Containing Ni Are [Ni(NH₃)₆]²⁺, Which Is Blue

question 92

Multiple Choice

Two complex ions containing Ni are [Ni(NH₃) ₆]²⁺, which is blue, and [Ni(en) ₃]²⁺, which is purple. Which one of these statements is true

• A) The crystal field splitting energy (D) is greater for [Ni(NH₃)₆]²⁺ than for [Ni(en)₃]²⁺.
• B) [Ni(en)₃]²⁺ absorbs light in the violet region of the spectrum.
• C) Both complex ions are diamagnetic.
• D) The energy of the photon absorbed by [Ni(en)₃]²⁺ is greater than that absorbed by [Ni(NH₃)₆]²⁺.
• E) The wavelength of the light absorbed by [Ni(en)₃]²⁺ is greater than the wavelength absorbed by [Ni(NH₃)₆]²⁺.

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Definitions:

Golgi Apparatus

A cell organelle involved in modifying, sorting, and packaging proteins and lipids for secretion or use within the cell.

Vacuole

Membrane-bound sac, larger than a vesicle; usually functions in storage and can contain a variety of substances. In plants, the central vacuole fills much of the interior of the cell.

Plant Cells

The basic structural and functional units of plants, distinguished by their cell wall, chloroplasts, and central vacuole.

Pigments

Substances that give color to living things, found in the skin, hair, eyes, plants, and many other parts of living organisms.