Advertisements
Advertisements
प्रश्न
How is the variability in oxidation states of transition metals different from that of p-block elements?
Advertisements
उत्तर
In transition elements, the variability in the oxidation state is due to the participation of (n – 1)d orbitals and ns orbitals. Thus, oxidation states differ by unity. For example, Fe3+ to Fe2+, Cr3+ to Cr2+ etc.
On the other hand, the variable oxidation states shown by some p-block elements differ by two units. For example, Sn4+ to Sn2+, Pb4+ to Pb2+.
संबंधित प्रश्न
Which metal in the first transition series (3d series) exhibits + 1 oxidation state most frequently and why?
Account for the following:
Cu+ ion is unstable in aqueous solution.
Account for the following:
Zn is not considered as a transition element.
Which metal in the first series of transition metals exhibits +1 oxidation state most frequently and why?
How is potassium dichromate prepared from chrome iron ore?
When a chromite ore (A) is fused with sodium carbonate in free excess of air and the product is dissolved in water, a yellow solution of compound (B) is obtained. After treatment of this yellow solution with sulphuric acid, compound (C) can be crystallised from the solution. When compound (C) is treated with KCl, orange crystals of compound (D) crystallise out. Identify A to D and also explain the reactions.
A complex in which dsp2 hybridisation takes place is ______.
Why are all copper halides known except that copper iodide?
Give reasons for the following statement:
Zn, Cd, and Hg are soft metals.
Account for the following:
Transition metals form alloys.
