Which of the following is Coloured compound?

Which of the following is Coloured compound?

So, CuF2 is coloured compound.

Is ag2so4 a Colour?

Silver(II) sulfate It is a black solid that decomposes exothermally at 120 °C with evolution of oxygen and the formation of the pyrosulfate.

Why is CuF2 Coloured?

When a visible light falls on a transition metal compound or ion, the unpaired electrons present in the lower energy d-orbital get promoted to higher energy d-orbital. This is called a d-d transition. Thus, it has one unpaired electron. So, it has one unpaired electron and hence, CuF2 is a coloured compound.

Which of the following pairs of ions may exhibit same Colour?

Cu+ and Ni++

Which of the following pairs of ions is expected to show Colour in aqueous solutions?

Solution : The colour of the transition metal ion is mainly attributed to d- transition take place because of the presence of unpaired electrons. The metal ion having same number of unpaired electrons may give same colour in their aqueous solution. In VOCl2,V^(IV)ionhav∈g3d^(1)ionhav∈g3d^(1)configurationhaso≠unpaired.

Which of the following ion is Coloured Sc3 Zn2+ cr3+?

The transition element exhibit color and magnetic property due to unpaired electron.Co2+ has electronic configuration [Ar] 4s03d7 has seven unpaired electron, Cr3+ has [Ar] 4s03d3 has three unpaired electrons, therefore, they will form coloured solution whereas Sc3+ [Ar] 4s03d0 has no unpaired electron, it will form …

Why ti4+ is Colourless but Ti3+ is Coloured?

Because TiCl3 has +3 oxidation of titanium so there is one unpaired electron In 3d so it is coloured and paramagnetic but TiCl4 has +4 oxidation so there is no unpaired electron I. 3d so it is colourless and diamagnetic. 🙂 The electronic configuration of Ti is [Ar]3d24s2 .

Which one of the following ions is the most stable in aqueous solution?

Cr3+ ion is the most stable in aqueous solution on account of maximum crystal field stabilization energy.