Q21 / 150 · MHT CET 2024 (10 May Shift 1) · Chemistry

What type of isomerism is exhibited by $\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3$ and $\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{Cl}\right] \mathrm{Cl}_2 \cdot \mathrm{H}_2 \mathrm{O}$

  • A
    Coordinate
  • Correct answer
    B
    Solvate
  • C
    Ionization
  • D
    Linkage

Solution

$\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3 \text { and }\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{Cl}^{-}\right] \mathrm{Cl}_{2:} \mathrm{H}_2 \mathrm{O}$ (I)
In compound I, the solvent water is directly bonded to Cr . In compound II, $\mathrm{H}_2 \mathrm{O}$ appears as the free solvent molecule. $\therefore \quad$ I and II represent solvate isomers.

Hence, the correct answer is option: 'B'.

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