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Deduce the complex's structure from moles of AgCl, ions or freezing point

This type of question, asked 5 times: 2021 Paper 20, 29 Jun 2022, 8 Apr 2024, 23 Jan 2025, 24 Jan 2025. All 5 questions below, oldest first.

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  1. Question 1

    2021 Paper 20

    55
    1 mol1\text{ }mol of an octahedral metal complex with formula MCl3⋅2 LMCl_{3}\cdot 2\text{ }L on reaction with excess of AgNO3AgNO_{3} gives 1 mol of AgClAgCl. The denticity of Ligand LL is ____ . (Integer answer)

  2. Question 2

    29 Jun 2022

    147
    For the reaction given below:
    CoCl3⋅xNH3+AgNO3(aq)→CoCl_{3}\cdot xNH_{3}+AgNO_{3}(aq) \rightarrow
    If two equivalents of AgClAgCl precipitate out, then the value of xx will be

  3. Question 3

    8 Apr 2024

    40
    An octahedral complex with the formula CoCl3nNH3CoCl_{3}nNH_{3} upon reaction with excess of AgNO3AgNO_{3} solution gives 2 moles of AgClAgCl. Consider the oxidation state of CoCo in the complex is ' xx '. The value of " x+nx + n " is ____ .

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  4. Question 4

    23 Jan 2025

    29
    CrCl3⋅xNH3CrCl_{3} \cdot xNH_{3} can exist as a complex. 0.1 molal aqueous solution of this complex shows a depression in freezing point of 0.558∘C0.558^{\circ}C. Assuming 100%100\% ionisation of this complex and coordination number of Cr is 6 , the complex will be (Given Kf=1.86 K kg mol−1K_{f}= 1.86\text{ }K\text{ }kg{\text{ }mol}^{- 1} )

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  5. Question 5

    24 Jan 2025

    28
    One mole of the octahedral complex compound Co(NH3)5Cl3Co\left( NH_{3} \right)_{5}Cl_{3} gives 3 moles of ions on dissolution in water. One mole of the same complex reacts with excess of AgNO3AgNO_{3} solution to yield two moles of AgCl(s)AgCl_{(s)}. The structure of the complex is :

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