Original revision introduction and starter practice. Full learning texts are available through the publisher links below. This guide is not a CBSE-issued solution manual.
Revision introduction
The mole connects a mass measurement to a number of particles. Use n=m/M with consistent mass units. A balanced equation gives mole ratios, not direct mass ratios. Identify the limiting reactant before calculating yield. Oxidation numbers help track electron transfer; a molecular formula is not the same as an empirical formula.
Curriculum navigation
Some Basic Concepts of Chemistry
Structure of Atom
Classification of Elements and Periodicity
Chemical Bonding and Molecular Structure
Chemical Thermodynamics
Equilibrium
Redox Reactions
Organic Chemistry – Basic Principles and Techniques
Hydrocarbons
Consult the current official syllabus for examinable sections, project-only content, practicals, prescribed texts and exclusions. A unit index does not override those boundaries.
Original practice
How many moles are in 18 g of water (M=18 g/mol)?
1
18
0.5
324
Worked answer
1
n=m/M=18/18=1 mol.
Full publisher materials and answer resources
CBSE 11 Chemistry · syllabus · CBSE · 2026-27 The current official syllabus defines examinable content, internal assessment, practicals and prescribed books. Unit names in the app are a navigation index; consult this document for exclusions and assessment boundaries.
NCERT · Chemistry Part-I · NCERT · 2026-27 Official book selector with chapter PDFs and complete-book download. A textbook may contain material outside the assessed syllabus; follow the linked current syllabus.
NCERT Exemplar Problems and Answers · NCERT · Archive · map to 2026-27 Select Class 11 and the subject. The official portal includes answer sections. Older exemplars require checking each question against the current syllabus.
KVS student support material · Class 11 · Kendriya Vidyalaya Sangathan · 2026-27 Use the 2026–27 support-material folders linked by the school. These are KVS teaching/revision resources, not CBSE official marking schemes. Subject availability varies; older packs must be mapped to the current syllabus.
NCERT laboratory manuals · NCERT · Reference · map to 2026-27 Select the class and subject. Use the practical list in the current CBSE syllabus; experiments require teacher supervision.
DIKSHA · curriculum learning resources · Ministry of Education / DIKSHA · Current portal Choose CBSE/NCERT, Class 11, subject and medium. This is a searchable portal, not a promise of a specific playable lesson.