Chemistry - Coordination Chemistry Question with Solution | TestHub

ChemistryCoordination ChemistryIsomerismHard2 minQB
ChemistryHardinteger

One mole of [Cr(H₂O)₆]³⁺ reacts with excess glycinate to give [Cr(gly)₃] and water. Let a be the ratio of the number of stereoisomers of the product to that of the reactant, b the sum of the stoichiometric coefficients of products minus that of reactants in the balanced equation, and c the magnitude of the change in the charge of the chromium complex. Find (a × b) + c.

Answer:
15
Solution:

[Cr(H₂O)₆]³⁺ + 3 gly⁻ → [Cr(gly)₃] + 6 H₂O. The reactant has 1 stereoisomer and the product M(AB)₃ has 4, so a = 4. Products 1 + 6 = 7 and reactants 1 + 3 = 4, so b = 3. The charge changes from +3 to 0, so c = 3. (4 × 3) + 3 = 15.

Stream:JEESubject:ChemistryTopic:Coordination ChemistrySubtopic:Isomerism
⏱ 2mℹ️ Source: QB

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