IGNOU BCHCT 135 Solved Assignment Solutions, Phase Equilibrium, Conductance, Electrochemistry And Functional Group Organic Chemistry-II 2023-2024 English

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This is a Core Course for students who have opted program BSCG under IGNOU BCHCT 135 Solutions, Phase Equilibrium, Conductance, Electrochemistry And Functional Group Organic Chemistry-II 2023-2024 With CBCS Pattern. We Provide the All Assignment Questions And Their Solutions.

BCHCT 135 Assignment Overview

Please check the ‘Assignments’ section in the B. Sc. Programme Guide we sent you after you joined. In this course, 30% of your grade comes from one assignment. It’s split into two parts, A and B, all adding up to 100 marks. To pass, you need at least 35%

BCHCT 135 Assignment Questions Download

Course Code:BCHCT 135
Assignment Code: ASST /TMA /July and January
Total Marks: 100

• ASSIGNMENT Course Code: BCHCT-135
• Assignment Code: BCHCT-135/TMA/2023
• Maximum Marks: 100

Note: Attempt all questions. The marks for each question are indicated against it.
Maximum Marks: 100
PART-(A) (50)

1. (a) What are ideal solutions? Give two examples of such solutions.
   (b) Draw and explain the vapour pressure curves for an ideal solution.
2. Draw and explain the mutual solubility curve for the phenol-water system. (5)
3. (a) How do the impurities Affect the CST values? Explain.
   (b) Explain the stability of different phases of a pure substance in terms of chemical potential versus temperature curves.
4. Define any five of the following terms:
   (i) Phase
   (ii) Azeotropes
   (iii) Congruent melting
   (iv) Concentration cell
   (v) Conductometric titration
   (vi) Galvanic cells
5. (a) What is the criterion for phase equilibrium for a heterogeneous system at constant pressure and temperature?
   (b) Define components in the context of phase rule. Calculate the number of components for the
   sublimation equilibrium of NH4Cl assuming that NH (g) 3 and HCl (g) are produced from the sublimation of NH Cl( ) 4
   s only.
6. (a) What is the triple point for a one component system? What is the degrees of freedom at the triple point?
   (b) Draw and explain the phase diagram for a simple eutectic system and give an industrial application for the same.
7. (a) Define molar conductivity and give its significance.
   (b) In a conductivity cell, the two platinum electrodes, each having an area of 2 cm2 are 1 cm apart.
   Using this cell the resistance of a 0.1 M solution of acetic acid is found to be 470Ω. Calculate the molar conductivity of the solution.
8. (a) List the requirements for an electrolyte to be indicator electrolyte in the moving boundary method for the determination of transference numbers’
   (b) In the determination of transference numbers of HCl by moving boundary method a 0.10 M solution of HCl was taken in a cell having uniform area of cross section of 1.0 cm2 . At the end of
   experiment the boundary moved by 10.3 cm and 0.132 g of silver was deposited on the cathode of silver coulometer. Calculate the transference numbers of ions of HCl.
9. (a) Differentiate between reversible and irreversible cells. (2)
   (b)Write the cell diagram for a galvanic cell in which the following reaction takes place. Sn(s) + 2 Ag+ (aq)  Sn2+(aq) + 2 Ag(s) Assume that potassium nitrate is used as electrolyte in the salt bridge and the concentrations of tin ions and silver ions are c1 and c2 respectively.
10. (a) Define electrolysis. Name the gases evolved in the electrolysis of brine.
    (b) Define liquid junction potential and describe its development.
    PART-(B) (50)
11. Discuss the mechanism of Hell-Vohlard-Zelinsky reaction. (5)
12. Write the mechanism and the products formed for the following reactions: (5)
    

1. (a) Give the IUPAC names of the following compounds:
   (i) CH3

• CH – CH2
• CH2NH2
  NH2
  (ii) CH3
• N
  CH2CH3
  CH2CH3
  (b) Briefly explain the following reactions:
  (i) Hofmann rearrangement
  (ii) Schmidt rearrangement

1. (a) How will you prepare the following compounds? Give reactions.
   (i) 4-methylbiphenyl
   (ii) 4-hydroxyazobenzene
   (iii) butter yellow dye
   (b) How will you convert 4-bronobenzenmine to 4-bromobenzenol?
2. (a) Discuss the nitrosation reaction of primary amines.
   (b) Discuss the nitration reaction of aniline. How would you account for the formation of different products?
3. (a) What is electrophoresis? Briefly explain. Also give its importance.
   (b) What BOC-group? Which reagent is used to introduce this group?
4. How will you synthesise valine using Gabriel phthalimide synthesis? (5)
5. Discuss the secondary structure of peptides. (5)
6. (a) Briefly explain the phenyl osazone formation by monosaccharides.
   (b) Why do D-(+)-glucose and D-(+)-mannose give the same osazone?
7. (a) What are polysaccharides? Give examples.
   (b) Briefly explain the structure aspects of starch.
   

Instruction For IGNOU BCHCT 135 Solved Assignment 2023-2024

Before you attempt the assignments, please read the instructions carefully provided in the Programme Guide.

• Use only foolscap size writing paper (but not of very thin variety) for writing your answers.
• Leave 4 cm margin on the left, top and bottom of your answer sheet.
• Your answers should be precise.
• Solve this assignment, and submit the complete assignment answer sheets within the due date.
• The assignment answer sheets are to be submitted to your Study Centre within the due date. Answer sheets received after the due date shall not be accepted.

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