Give valence bond description for the bonding in the complex `[VC1_4]^-1`. Draw box diagrams for free metal ion. Which hybrid orbitals are used by the metal? State the number of unpaired electrons.

[CoC1_4]^(2o.) is tetrahedral complex. Draw its box obital diagram. State which orbitals participate in hybridization.

Give VBT description of bonding in each of following complexes. Predict their magnetic behavior. (i) [ZnC1_4]^(2o.)

Give VBT description of bonding in each of following complexes. Predict their magnetic behavior. (iv) [CoC1_4]^(2o.) (tetrahedral)

What is the shape of a complex in which the coordination number of central metal ion is 4?

Let us see whether the given atom has paired electron or unpaired electrons in the outermost orbit. We will follow three steps (1) Write electronic configuration (2) Draw valence orbital (3) Identify if unpaired electron exist Given : Chlorine Cl ( it has total 17 electrons )

In the modern periodic table, the elements are arranged in the increasing order of their atomic number. This arrangement is based on the modern periodic law, which states that the properties of elements are a periodic function of their atomic numbers. In the modern periodic table, each column is called a group and each row is called a period. Elements within the same group show similarity and gradation in properties. This is due to the same number of electroms in the outermost shell . Based on the above paragraph, answer the following question: What is the number of valence electrons in an element of group 1 and group 18 respectively?

What is the coordination number and oxidation state of metal ion in the complex [Pt(NH_3)C1_5]o.

Draw qualitatively energy-level diagram showing d-orbital splitting in the octahedral environment. Predict the number of unpaired electrons in the complex [Fe(CN)_6]^(4-) . Is the complex diamagnetic or paramagnetic? Is it coloured? Explain.

The work function for the following metals is given Na: 2.75 eV, K:2.30 eV , Mo: 4.17 eV , Ni: 515 eV. Which of these metals will not give photoelectric emission for a radiation of wavelength 3300 A from a He-Cd laser placed 1m away from the photocell? What happens if the laser is brought nearer and placed 50 cm away?

In the complex with formula MCl_3. 4H_2O , the coordination number of the metal M is six and there is no molecule of hydration in it. The volume of 0.1M AgNO_3 solution needed to precipitate the free chloride ions in 200 mL of 0.01 M solution of the complex is _________.