Chemistry
GATE CY topic:transition-elements PYQs
Build your understanding with focused practice from past exam papers.
Questions 31–40 of 43. Imported answers require independent review unless marked reviewed.
Question 5
Open questionCYMCQ1 markNeeds review
The Δₒ value of [Ni(H₂O)₆]²⁺ is 850 cm⁻¹. The Δₒ values for [NiCl₆]⁴⁻ and [Ni(NH₃)₆]²⁺ compared to [Ni(H₂O)₆]²⁺ are
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The experimentally observed magnetic moment values, which match well with the spin-only values for the pair of aqueous ions is
(Atomic number: Cr = 24, Co = 27, Gd = 64, Tb = 65, Dy = 66 and Lu = 71)
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The rate of the following redox reaction is slowest when X is
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A complex is composed of one chromium ion, three bromides and six water molecules. Upon addition of excess AgNO₃, 1.0 g aqueous solution of the complex gave 0.94 g of AgBr. The molecular formula of the complex is
(Atomic weight: Cr = 52, Br = 80, Ag = 108, O = 16 and H = 1)
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Open questionCYNAT2 marksNeeds review
The number of possible optically active isomer(s) for the following complex is ________.
[(en)₂Co(N₂)(H₂)Co(en)₂]⁴⁺
en = ethylenediamine
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The water exchange rates for the complex ions follow the order
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The lowest energy
transition of the complexes follow the orderYour answerChoose one option.
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The symmetry label of valence p orbitals of a metal ion in an octahedral ligand field is
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Spectroscopic ground state term symbols of cobalt ions in [Co(H₂O)₆]²⁺ and [CoCl₄]²⁻, respectively, are
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Second-order rate constant for the reaction between [Co(NH₃)₅X]ⁿ⁺ (n = 3 for X = NH₃ and H₂O; n = 2 for X = Cl⁻) and [Cr(H₂O)₆]²⁺ at room temperature varies with the X as
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