Out of Cu$_2$Cl$_2$ and CuCl$_2$, which is more stable in aqueous solution and why?
Solution and Explanation
CuCl2 is more stable than Cu2Cl2 in aqueous solution because Cu2+ is more stable than Cu+ due to its higher hydration enthalpy (ΔhydH°).
In aqueous solution, Cu+ undergoes disproportionation, as shown in the equation:
2Cu+(aq) → Cu2+(aq) + Cu(s)
Top Questions on Coordination chemistry
- The light pink colour of \([Co(H_2O)_6]^{2+}\) and the deep blue colour of \([CoCl_4]^{2-}\) are due to:
- CUET (PG) - 2026
- Chemistry
- Coordination chemistry
- The correct IUPAC name of the complex [Pt(NH$_3$)$_2$Cl$_2$] is:
- CBSE CLASS XII - 2026
- Chemistry
- Coordination chemistry
- Which of the following is heteroleptic complex?
- CBSE CLASS XII - 2026
- Chemistry
- Coordination chemistry
- Which ligand causes maximum crystal field splitting?
- GATE CY - 2026
- Chemistry
- Coordination chemistry
- Which of the following has tetrahedral coordination?
- IIT JAM CY - 2026
- Chemistry
- Coordination chemistry
Questions Asked in CBSE CLASS XII exam
- Find the general solution of the differential equation \[ y\log y\,\frac{dx}{dy}+x=\frac{2}{y}. \]
- CBSE CLASS XII - 2026
- Differential Equations
- A square loop of side 0.50 m is placed in a uniform magnetic field of 0.4 T perpendicular to the plane of the loop. The loop is rotated through an angle of 60° in 0.2 s. The value of emf induced in the loop will be:
- CBSE CLASS XII - 2026
- Electromagnetic induction
A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following:
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).
- CBSE CLASS XII - 2026
- Integration
- Consider a cylindrical conductor of length \( l \) and area of cross-section \( A \). Current \( I \) is maintained in the conductor and electrons drift with velocity \( \vec{v}_d \, (|\vec{v}_d| = \frac{eE}{m} \tau) \), where symbols have their usual meanings. Show that the conductivity of the material of the conductor is given by \[ \sigma = \frac{n e^2 \tau}{m}. \]
- CBSE CLASS XII - 2026
- Current Density
- The painting Hazrat Nizamuddin Auliya and Amir Khusro belongs to which sub-school of Deccan Miniature?
- CBSE CLASS XII - 2026
- Indian Miniature Paintings and Museums