Out of the following complex compounds, which of the compound will be having the minimum conductance in solution?
Show Hint
- \([Co(NH_3)_4Cl_2]Cl\)
- \([Co(NH_3)_6]Cl_3\)
- \([Co(NH_3)_5Cl]Cl\)
- \([Co(NH_3)_3Cl_3]\)
The Correct Option is D
Solution and Explanation
The conductance of a solution depends on the number of ions present in the solution. When coordination complexes dissolve in water, the counter-ions dissociate, contributing to the conductance. Ligands inside the coordination sphere do not dissociate.
Let's analyze each complex:
1. $[Co(NH_3)_4Cl_2]Cl$ dissociates into $[Co(NH_3)_4Cl_2]^+$ and $Cl^-$. This gives 2 ions in solution.
2. $[Co(NH_3)_6]Cl_3$ dissociates into $[Co(NH_3)_6]^{3+}$ and $3Cl^-$. This gives 4 ions in solution.
3. $[Co(NH_3)_5Cl]Cl_2$ dissociates into $[Co(NH_3)_5Cl]^{2+}$ and $2Cl^-$. This gives 3 ions in solution.
4. $[Co(NH_3)_3Cl_3]$ does not have any counter-ions outside the coordination sphere.
Therefore, it does not dissociate into any ions in solution. It exists as a neutral molecule in solution.
Therefore, this is not an electrolyte, and has minimum conductance.
Therefore, the complex with the minimum conductance will be the one that produces the fewest ions in solution.
Thus, the compound with the minimum conductance is $[Co(NH_3)_3Cl_3]$.
Top Questions on Inorganic chemistry
- Write the balanced chemical equation, when excess of ammonia is treated with chlorine.
- Maharashtra Class XII - 2025
- Chemistry
- Inorganic chemistry
- Write the names of the metal elements in brass alloy.
- Maharashtra Class XII - 2025
- Chemistry
- Inorganic chemistry
- 'X' is the number of acidic oxides among $ VO_2, V_2O_3, CrO_3, V_2O_5 $ and $ Mn_2O_7 $. The primary valency of cobalt in $ [Co(H_2NCH_2CH_2NH_2)_3]_2 (SO_4)_3 $ is Y. The value of X + Y is :
- JEE Main - 2025
- Chemistry
- Inorganic chemistry
- The correct statements from the following are :
(A) $ Tl^{3+} $ is a powerful oxidising agent
(B) $ Al^{3+} $ does not get reduced easily
(C) Both $ Al^{3+} $ and $ Tl^{3+} $ are very stable in solution
(D) $ Tl^+ $ is more stable than $ Tl^{3+} $
(E) $ Al^{3+} $ and $ Tl^+ $ are highly stable
Choose the correct answer from the options given below :- JEE Main - 2025
- Chemistry
- Inorganic chemistry
Consider the following reactions $ A + HCl + H_2SO_4 \rightarrow CrO_2Cl_2$ + Side Products Little amount $ CrO_2Cl_2(vapour) + NaOH \rightarrow B + NaCl + H_2O $ $ B + H^+ \rightarrow C + H_2O $ The number of terminal 'O' present in the compound 'C' is ______
- JEE Main - 2025
- Chemistry
- Inorganic chemistry
Questions Asked in NEET exam
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
- NEET (UG) - 2025
- Pendulums
- An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at temperature \(27^\circ\)C. The mass of the oxygen withdrawn from the cylinder is nearly equal to: [Given, \(R = \frac{100}{12} \text{ J mol}^{-1} \text{K}^{-1}\), and molecular mass of \(O_2 = 32 \text{ g/mol}\), 1 atm pressure = \(1.01 \times 10^5 \text{ N/m}^2\)]
- NEET (UG) - 2025
- Ideal-gas equation and absolute temperature
- A uniform rod of mass 20 kg and length 5 m leans against a smooth vertical wall making an angle of \(60^\circ\) with it. The other end rests on a rough horizontal floor. The friction force that the floor exerts on the rod is (take \(g = 10\) m/s\(^2\)):
- NEET (UG) - 2025
- Common forces in mechanics
- A wire of resistance \(R\) is cut into 8 equal pieces. From these pieces, two equivalent resistances are made by adding four of these together in parallel. Then these two are added in series. The net effective resistance of the combination is:
- NEET (UG) - 2025
- Resistance
- Which of the following organisms cannot fix nitrogen? A. Azotobacter
B. Oscillatoria
C. Anabaena
D. Volvox
E. Nostoc
Choose the correct answer from the options given below:- NEET (UG) - 2025
- Nitrogen Fixation