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Coordination Compounds question

2025 · 23 Jan · Shift 1 · Q6
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  5. /2025 · 23 Jan · Shift 1 · Q6

Coordination Compounds question

2025 · 23 Jan · Shift 1 · Q6

JEE MainChemistryCoordination CompoundsMCQ+4 / −1
CrCl3⋅xNH3\mathrm{CrCl}_3 \cdot \mathrm{xNH}_3CrCl3​⋅xNH3​ 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} \mathrm{C}0.558∘C. Assuming 100%100 \%100% ionisation of this complex and coordination number of Cr is 6 , the complex will be (Given Kf=1.86 K kg mol−1\mathrm{K}_{\mathrm{f}}=1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}Kf​=1.86 K kg mol−1 )
  1. A
    [Cr(NH3)5Cl]Cl2\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right] \mathrm{Cl}_2[Cr(NH3​)5​Cl]Cl2​
  2. B
    [Cr(NH3)4Cl2]Cl\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right] \mathrm{Cl}[Cr(NH3​)4​Cl2​]Cl
  3. C
    [Cr(NH3)6]Cl3\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3[Cr(NH3​)6​]Cl3​
  4. D
    [Cr(NH3)3Cl3]\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_3 \mathrm{Cl}_3\right][Cr(NH3​)3​Cl3​]
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