Telangana Open School (TOSS) Class 12 Chemistry — Important Questions 2026
Most important questions for Telangana Open School (TOSS) Class 12 Chemistry board exam 2026. Chapter-wise questions with marking scheme and expected topics.
Quick Summary
This page covers the most important questions for Telangana Open School (TOSS) Class 12 Chemistry board exam 2026, based on previous year question papers and expected topics. Focus on these for maximum marks.
How to Use Important Questions
- Start with high-weightage chapters — focus on chapters that carry the most marks in the exam.
- Practice writing answers — don't just read; write out answers within the time limit to build speed.
- Cross-reference with syllabus — ensure every chapter is covered by checking the syllabus page.
- Revise with notes — after practising, use revision notes for quick recap before the exam.
Chapter-Wise Important Questions — 41 Chapters
Focus on high-weightage chapters first. Each chapter below lists the types of questions frequently asked in Telangana Open School (TOSS) board exams.
Mole Concept
51 questionsWhich of the following is the correct symbol for kilo?
How many molecules are present in 1 mole of oxygen gas (O₂)?
The atomic mass unit (amu) is defined as 1/12th the mass of which atom?
What is the relative atomic mass of oxygen?
+47 more questions — practice in Super Tutor
Occurance and Extraction of Metals
51 questionsWhat is the rocky impurity present in an ore called?
Which of the following is a sulphide ore?
Which process is used to remove gangue from powdered ore?
Gravity separation is used for which type of ores?
+47 more questions — practice in Super Tutor
Environmental Concerns
44 questionsWhich segment of the environment includes minerals, metals, and rocks?
The atmosphere is important because it contains:
Pollution refers to the deterioration of natural resources due to:
Contamination means:
+40 more questions — practice in Super Tutor
38 more chapters available
Get chapter-wise important questions with practice tests for all 41 chapters
Try Super Tutor — It's FreeGet chapter-wise help for Telangana Open School (TOSS) Class 12 Chemistry
Super Tutor gives you detailed chapter summaries, revision notes, practice quizzes, and flashcards — all tailored to the Telangana Open School (TOSS) syllabus.
Try Super Tutor — It's FreeFrequently Asked Questions
Where can I find Telangana Open School (TOSS) Class 12 Chemistry Important Questions?
This page provides important questions for Telangana Open School (TOSS) Class 12 Chemistry for the 2026 board exam. For chapter-by-chapter study help including summaries, quizzes, and flashcards, try Super Tutor.
Is Telangana Open School (TOSS) Class 12 Chemistry easy to score in?
Chemistry is one of the scoring subjects in Telangana Open School (TOSS) Class 12 if prepared well. Focus on understanding concepts, practising problems regularly, and revising key formulas. Most students who follow a structured study plan score above 80%.
How to prepare for Telangana Open School (TOSS) Class 12 Chemistry board exam?
Start by understanding the complete syllabus. Then focus on important questions from each chapter. Use revision notes for quick review before exams. Follow a study plan that covers all chapters with dedicated revision time.
How many questions come from each chapter in Telangana Open School (TOSS) Class 12 Chemistry?
The question paper distribution varies each year, but certain chapters consistently carry more marks. Check the marks distribution section above for chapter-wise weightage based on previous year patterns.
Browse Important Questions by Chapter
41 chapters available
Mole Concept
Occurance and Extraction of Metals
Environmental Concerns
Chemical Arithmetics
Hydrogen and s - block Elements
Air Pollution
Atomic Structure
General Characteristics of the p-block Elements
Water Pollution
Periodic Table and Atomic Properties
p-block Elements and their Compounds - I
Heavy Metal and Radioactive Pollution
Chemical Bonding
p-block Elements and their Compounds - II
Noise and Soil Pollution
The Gaseous state
d-block and f-block Elements
Petrochemicals
The Liquid State
Coordination Compounds
Polymers
The Solid State
Nomenclature and General Principles
Dyes, Paints and Pigments
Solutions
Hydrocarbons
Drugs and Medicines
Colloids
Compounds of Carbon Containing Halogens (Haloalkanes and Haloarenes)
Building Materials
Chemical Thermodynamics
Alcohols, Phenols and Ethers
Spontaneity of Chemical reactions
Aldehydes, Ketones and Carboxylic Acids
Chemical Equilibrium
Compounds of Carbon Containing Nitrogen
Ionic Equilibrium
Biomolecules
Electro Chemistry
Chemical Kinetics
Adsorption and Catalysis
More Chemistry Resources
Telangana Open School (TOSS) Class 12
Practice Quiz
Test yourself with interactive quizzes
Revision Notes
Key formulas, concepts, and quick revision points
Formula Sheet
Every formula you need in one place
Chapter Summary
Understand each chapter at a glance
Concept Maps
Visual diagrams showing how topics connect
Study Plan
Day-by-day preparation schedule
Flashcards
Quick-fire cards for active recall practice
Syllabus
Complete topic list and marks distribution
NCERT Solutions
Every textbook exercise solved step by step