हिंदी

The transition metal ions responsible for colour in ruby and emerald are, respectively: -

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प्रश्न

The transition metal ions responsible for colour in ruby and emerald are, respectively:

विकल्प

  • CO3+ and Cr3+

  • CO3+ and Co3+

  • Cr3+ and Cr3+

  • Cr3+ and CO3+

MCQ

उत्तर

Cr3+ and Cr3+ 

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Position in the Periodic Table - d-block Elements
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