IGNOU MCH 16 SOLVED ASSIGNMENT

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MCH 016 (July 2025) - ENGLISH

Tutor Marked Assignment

MCH-016: INORGANIC CHEMISTRY 2

Course Code: MCH-016

Assignment Code: MCH-011/TMA/2025

Maximum Marks: 100

Note: Attempt all questions. The marks for each question are indicated against it.

1. a) Give the classification of substitution mechanisms for octahedral complexes.

b) Explain the mechanism of substitution reactions in trigonal bipyramidal complexes.

2. a) With a suitable example suggest the order of the reactions of base-catalyzed hydrolyses and predict the mechanism that is followed in them.

b) Explain with suitable figures the Bailar twist mechanism followed in intramolecular racemization reactions.

3. a) Explain the dissociation mechanism and stereochemical changes for trans -[M(LL)2BX] with the help of suitable diagrams.

b) Give suitable examples for trans-effect in octahedral complexes where CO and substituted phosphines are used as ligands.

4. a) With the help of suitable diagrams explain the rearrangement of the cis A enantiomer by the bond rupture mechanism involving a trigonal bipyramidal intermediate.

b) What are the salient features of an outer-sphere electron transfer mechanism?

5. a) Give the elementary steps and rate expression for the inner sphere mechanism which involves formation of a precursor complex.

b) What are the ways by which the outer sphere electron transfer reaction is utilized to synthesize coordination compounds?

6. a) What is there in the 5th position of deoxyhemoglobin? Explain with a suitable diagram. Give the relevant equations for the equilibrium constant regarding the oxygen binding by myoglobin.

b) With suitable figures explain the arrangement of the subunits of the apoferretin shell.

7. a) What is cytochrome c Oxidase? Also explain the role of cytochrome P450 in drug metabolism.

b) Write a short note on rubredoxins.

8. a) With suitable figures give the differences in the chemical structures of chlorophyll a and chlorophyll b,

b) Explain "in vivo" and "in vitro" nitrogen fixation.

9. a) With suitable diagrams explain which is the active Zn² site of carboxypeptidase A.

b) Explain the transformation of xanthine to uric acid by xanthine oxidase

10. a) What is the role of metal ion in protein-RNA interaction?

b) Give a brief account on the toxic effects of metals.

 

MCH 016 (January 2026 - July 2026) - ENGLISH

Tutor Marked Assignment

MCH-016: INORGANIC CHEMISTRY 2

Course Code: MCH-016

Assignment Code: MCH-011/TMA/2025

Maximum Marks: 100

Note: Attempt all questions. The marks for each question are indicated against it.

1. a) Give the classification of substitution mechanisms for octahedral complexes.

b) Explain the mechanism of substitution reactions in trigonal bipyramidal complexes.

2. a) With a suitable example suggest the order of the reactions of base-catalyzed hydrolyses and predict the mechanism that is followed in them.

b) Explain with suitable figures the Bailar twist mechanism followed in intramolecular racemization reactions.

3. a) Explain the dissociation mechanism and stereochemical changes for trans - [M(LL)₂BX] with the help of suitable diagrams.

b) Give suitable examples for trans-effect in octahedral complexes where CO and substituted phosphines are used as ligands.

4. a) With the help of suitable diagrams explain the rearrangement of the cis  enantiomer by the bond rupture mechanism involving a trigonal bipyramidal intermediate.

b) What are the salient features of an outer-sphere electron transfer mechanism?

5. a) Give the elementary steps and rate expression for the inner sphere mechanism which involves formation of a precursor complex.

b) What are the ways by which the outer sphere electron transfer reaction is utilized to synthesize coordination compounds?

6. a) What is there in the 5th position of deoxyhemoglobin? Explain with a suitable diagram. Give the relevant equations for the equilibrium constant regarding the oxygen binding by myoglobin.

b) With suitable figures explain the arrangement of the subunits of the apoferretin shell.

7. a) What is cytochrome c Oxidase? Also explain the role of cytochrome P450 in drug metabolism.

b) Write a short note on rubredoxins.

8. a) With suitable figures give the differences in the chemical structures of chlorophyll a and chlorophyll b,

b) Explain "in vivo" and "in vitro" nitrogen fixation.

9. a) With suitable diagrams explain which is the active Zn² site of carboxypeptidase A.

b) Explain the transformation of xanthine to uric acid by xanthine oxidase

10. a) What is the role of metal ion in protein-RNA interaction?

b) Give a brief account on the toxic effects of metals.

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Course Name	M.Sc. in Chemistry
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Language	English

 

 

 

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