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Question

The total number of ions produced from the complex $[Cr(NH_3)_6]Cl_3$ in aqueous solution will be____________.

The correct answer is
4

Dissociation of $[Cr(NH_3)_6]Cl_3$ Complex

When the coordination complex $[Cr(NH_3)_6]Cl_3$ is dissolved in an aqueous solution, it dissociates into ions based on its ionic structure.

The complex consists of a complex cation, $[Cr(NH_3)_6]^{3+}$, and three chloride anions, $Cl^-$.

The dissociation reaction in water can be represented as:

$ [Cr(NH_3)_6]Cl_3 \xrightarrow{H_2O} [Cr(NH_3)_6]^{3+} + 3Cl^- $

Calculating Total Ions Produced

By examining the dissociation equation, we can count the total number of ions formed:

  • One complex cation: $[Cr(NH_3)_6]^{3+}$
  • Three chloride anions: $3 \times Cl^-$

The total number of ions is the sum of the cation and the anions:

Total ions = (Number of complex cations) + (Number of chloride anions)

Total ions = 1 + 3 = 4

Therefore, a total of 4 ions are produced from the complex $[Cr(NH_3)_6]Cl_3$ in an aqueous solution.

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Important Questions from Coordination Compounds

  1. The chemical formula of sodium nitroprusside is

  2. The allowed transition in an atomic system is

  3. The correct set of information is

  4. The products A and B for the given reaction [Co(NH3)5CI]2+ + [Cr(OH2)6]2+ + 5H3O+ → A + B are, respectively

  5. The rate of hydration of [CrIII(H2O)5X]n+, (X = \(\rm N_3^-\), F-, CN- and NH3) in neutral aqueous medium remains unaffected in acidic medium at room temperature, if 'X' is

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