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Chemistry

Chapter 1 - Transition Elements and Iron Metallurgy

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Quiz

Lesson 1: First Transition Series, Electronic Configurations and Economic Significance — Picture questions (exam style)

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1.
X is a first-row transition element; its ion X4+ has 3 unpaired electrons (see the orbital diagram). Which option is correct?
X is a first-row transition element; its ion X⁴⁺ has 3 unpaired electrons (see the orbital diagram). Which option is correct?
the element is used in: catalyst for sulfuric acid, the ion is paramagnetic and colourless
the element is used in: dry cells, the ion is paramagnetic and coloured
the element is used in: radiotherapy (radioisotope), the ion is diamagnetic and coloured
the element is used in: radiotherapy (radioisotope), the ion is paramagnetic and colourless