Discuss briefly giving an example in each case the role of coordination compounds in: i) biological systems ii) analytical chiemistry iii) medicinàl chemistry iv) extraction metallurgy of metals

Discuss briefly with an example in each case the role of coordination compounds:- Analytical chemistry.

Discuss briefly with an example in each case the role of coordination compounds:- Extraction of metals.

Give one. example of each (i) Asymmetry (ii) Radial symmetry. (iii) Bilateral symmetry

Explain giving reasons: i. Transition metals and many of their compounds show paramagnetic behaviour. ii. The enthalpies of atomisation of the transition metals are high. iii. The transition metals generally form coloured compounds. Iv. Transition metals and their many compounds act as good catalyst.

Write the formulas for the following coordination compounds: i) Tetraamminediaquacobalt(III) chioride ii) Potassium tetracyanonickelate(II) iii) Tris(ethane-1,2-diamine)' chromium(III) chioride s iv) Ámminebromidochloridonitrito-N-platinațe(II) v) Dichloridóbis(ethane-l,2-diamine) platinum (iv) nitrate vi) Iron(III) hexacyanoferrate (II)

Write down the IUPAC name for each of the following complexes and indicate the oxidation state, electronic configuration and coordination number. Also give stereochemistry and magnetic moment of the complex.. i) K[Cr(H_2 O)_2(C_2 O_4)_2] 3H_2 O ii) [CrCl_3(Py)]_3 iii) K_4[Mn(CN)_6] iv) [Co(NH_3)_5 Cl] Cl_2 . v) Cs[FeCl_4]

Read the following statements carefully and select the appropriate option given below. (i) Reproduction is defined as a biological process in which an organism gives rise to the young ones (offspring) similar to itself. (ii) Adventitious buds arise from the notches present at margins of leaves of Bryophyllum. (iii) Asexual reproduction is common among single celled organisms, and in plants and animals with relatively simple organisations. (iv) A few plants exhibit unusual flowering phenomenon, some of them such as bamboo species flower only once in their life time, generally after 50-100 years. (v) The events of asexual reproduction though elaborate and complex, follow a regular sequence.

Compare the general characteristics of the first series of the transition metals with those of the second and third series metals. in the respective vertical columns. Give special emphasis on the following points: (i) electronic configurations (ii) oxidation states iii) Ionisation enthalpies and iv) atomic sizes.

Which of the following statements about Ellingham diagram are true? i) Ellingham diagram normally consists of plots of Delta_(f)G^(@) Vs T for formation of oxides of elements (ii) Each plot will be straight lines at all temperatures iii) There is a point in a curve below which DeltaG is -ve and above this point the oxide decompose its own iv) Ellingham diagram is restricted to metal oxides v) Ellingham diagram does not say about kinetics of the reduction process vi) Ellingham diagram presumes that the reactants and products are in equilibrium