AP EAMCET20225 Jul 2022Evening ShiftChemistryd and f Block ElementsActual

In ruby and emerald, the metal ion(s) present is/are

Options

ACr ⁶⁺, Mn ³⁺
BCr ³⁺
CMn ³⁺, Co ³⁺
DCo ³⁺

Correct answer

B. Cr ³⁺

Step-by-step solution

Ruby is Al ₂ O ₃ in which red colour is obtained when Cr ³⁺ replaces Al ³⁺ ions in octahedral sites. Emerald is Be ₃ Al ₂ ( SiO ₃ )₆ in which green colour is obtained when Cr ³⁺ replaces Al ³⁺ .

Practice d and f Block Elements on Quantrex Academy →

More from d and f Block Elements

Pick out the correct option Assertion(A): Mercury is not considered as a transition element Reason (R): Mercury is a liquid 2026 Which of the following does not correctly represent the order of the property indicated against it? 2026 The element with the highest third ionisation enthalpy is: 2026 The product and its colour when MnO₂ is fused with KOH in presence of O₂ : 2026 The ion that has a spin only magnetic moment of 5.9 BM is: 2026 Which one of the following species will impart colour to an aqueous solution? 2026 The basic character of transition metal monoxides follows the order: 2026 K ₂ Cr ₂ O ₇ on heating with aqueous NaOH gives ------------------------- 2026 Full d and f Block Elements list All AP EAMCET PYQs