BCHCT-135 IGNOU Guess Paper 2026-27

Course Scope & Syllabus Overview for BCHCT-135

BCHCT-135, titled Solutions, Phase Equilibrium, Conductance, Electrochemistry and Functional Group Organic Chemistry-II, is a core course under IGNOU’s Bachelor of Science (BSCG) curriculum, designed to deepen students’ understanding of fundamental chemical principles within the School of Sciences. This course bridges theoretical knowledge with practical applications, focusing on colligative properties, phase behavior, electrochemical systems, and advanced organic functional groups. It aligns with the CBCS framework to ensure comprehensive preparation for term-end examinations, emphasizing problem-solving, theoretical reasoning, and experimental relevance in Chemistry & Chemical Sciences.

Key Syllabus Units & Topics

• Block-1 Solutions and Phase Equilibrium: Covers colligative properties (osmotic pressure, boiling point elevation, freezing point depression) and phase equilibrium principles, including Raoult’s Law and vapor pressure diagrams, essential for understanding solution behavior and industrial applications.
• Block-2 Conductance and Electrochemistry: Explores electrical conductance in electrolytic solutions, Nernst equation, and electrochemical cells, with practical insights into redox reactions and their thermodynamic analysis, critical for modern energy and analytical chemistry.
• Block-3 Carboxylic Acids Their Derivatives and Amino Compounds: Examines reaction mechanisms of carboxylic acids, esters, amides, and amino acids, including nucleophilic substitution and tautomerism, foundational for organic synthesis and biochemical pathways.
• Block-4 Peptides, Proteins and Carbohydrates: Delves into peptide bonding, protein structure-function relationships, and carbohydrate classification, linking organic chemistry to biochemistry for holistic understanding.

Frequently Asked Questions

Q: How are marks distributed in BCHCT-130’s term-end examination, and what weightage does each block carry?
A: The TEE for BCHCT-135 follows a 70% theory (including numericals) and 30% practical/application-based section, with each of the four blocks (Solutions, Electrochemistry, Carboxylic Derivatives, and Biomacromolecules) carrying approximately equal weightage, typically 20–25% each.

Q: Are past year question papers from June/December cycles available, and how can they help in preparation?
A: Yes, IGNOU provides solved question papers for June and December cycles on eGyanKosh; analyzing these reveals recurring themes (e.g., phase equilibrium calculations, electrochemistry problems) and helps prioritize high-yield topics for efficient revision.