CHE-105 YCMOU Guess Paper, Solved PYQs, Notes 2026-27

Earn higher marks in CHE-105 with YCMOU’s most precise Term-End Exam (TEE) preparation tool—a meticulously curated collection of solved previous year question papers and concise study notes. Designed exclusively for B.Sc. (Botany, Chemistry, Zoology) students following the 2023 Pattern, this resource eliminates guesswork by providing directly mapped answers to YCMOU’s exam blueprint.

Academic Objective for CHE-105 Students

CHE-105 introduces foundational concepts in Basic Inorganic and Organic Chemistry, emphasizing:

• Periodic trends and chemical bonding (Unit 1)
• Stoichiometry and thermodynamics (Unit 2)
• Organic functional groups and nomenclature (Unit 3)
• Qualitative analysis techniques (Unit 4)

This resource aligns perfectly with YCMOU’s Self-Instructional Material (SIM) structure, ensuring you master both theoretical and problem-solving skills required for Continuous Assessment (CA) home assignments and the Term-End Exam (TEE).

Key Syllabus Modules Covered

The included 100+ solved PYQs are categorized by chapter, mirroring YCMOU’s official syllabus:

• Unit 1: Basic Concepts of Chemistry
  • Avogadro’s number and molar mass calculations (with step-by-step solutions)
  • Gaseous state laws (Boyle’s, Charles’, Gay-Lussac’s) applied to YCMOU’s numerical problems
• Unit 2: Chemical Bonding and Molecular Structure
  • VSEPR theory and hybridization (with visualized examples from past exams)
  • Lewis structures for polyatomic ions (directly referenced in TEE question patterns)
• Unit 3: Organic Chemistry Basics
  • IUPAC nomenclature for hydrocarbons (with practice questions from 2022-23 TEE)
  • Functional group reactions (e.g., saponification, esterification) with balanced equations
• Unit 4: Qualitative Analysis
• Cation/anion identification tests (with colorimetric observations noted for clarity)
• Solubility rules applied to YCMOU’s lab-based exam questions

Continuous Assessment (CA) and Exam Utility

This resource is not just for TEE preparation—it directly supports your CA home assignments (गृहपाठ) by:

• Identifying recurring themes in YCMOU’s 30% CA weightage (e.g., stoichiometry problems in Unit 2)
• Providing model answers formatted to YCMOU’s PRN-based grading criteria
• Including time-management tips for 100-mark TEE papers (e.g., prioritizing high-weightage units)

Study Guidelines for YCMOU Students

To maximize efficiency:

• Start with PYQs—practice 5 questions daily from each unit to build speed
• Cross-reference with SIM—use the notes to fill gaps in concepts highlighted in past papers
• Simulate exam conditions—attempt full-length PYQs under 3 hours to adapt to TEE timing
• Focus on weak units—track your performance per chapter using the answer key’s scoring rubric

Why This Resource Stands Out for YCMOU Students

Unlike generic study guides, this YCMOU-specific collection includes:

• Exact TEE question formats—no abstract problems; only real exam scenarios from 2020–2026
• PRN-compliant answers—adheres to YCMOU’s grading scheme for practical and theoretical marks
• Study Centre-ready—ideal for group discussions at YCMOU’s regional centers
• English-medium clarity—avoids ambiguity in chemical terminology critical for TEE

Stop wasting time on unclear resources—this is the only CHE-105 guide that guarantees you’ll recognize the exam pattern before Test Day.