Watch this chapter
Chemistry · Class 11Some Basic Concepts of ChemistryVideo coming soonRead the notes instead
Free notes for this chapterMark as Completed
Mole Concept, Laws of Chemical Combination, Empirical and Molecular Formula and the board questions built on them — roughly 6 marks of the paper.
What this chapter covers
- 1Mole Concept
- 2Laws of Chemical Combination
- 3Empirical and Molecular Formula
- 4Stoichiometric Calculations
These lessons are being recorded. The written notes for this chapter are free to download now.
Learning resources
Seedha Notes
Chapter notes withimportant points,examples & format
View Notes for Some Basic Concepts of Chemistry, ChemistryPractice Questions
Important questions,board questions,numericals
Practice Now for Some Basic Concepts of Chemistry, ChemistryPrevious yearquestions withfull solutions
View PYQs for Some Basic Concepts of Chemistry, ChemistrySample Paper
Board patternsample paper withmarking scheme
Open Paper for Some Basic Concepts of Chemistry, Chemistry
In the notes
Topics covered
- 01Mole Concept26:32
- 02Laws of Chemical Combination25:12
- 03Empirical and Molecular Formula16:45
- 04Stoichiometric Calculations24:18
After this chapter you can
- Explain mole concept without reading from the book
- Present laws of chemical combination in the format the marking scheme rewards
- Attempt every previous year question set on this chapter
- Marks
- 6
- PYQs
- 23
- Video
- 1h 33m
Then do the work
- One-shot revision, 23 minutes
- Formula sheet for this chapter
- Printable summary, 2 pages
Prepare
| Year | Asked as | Marks |
|---|---|---|
| 2025 | Long answer | 4 |
| 2024 | Short answer | 2 |
| 2023 | Case based | 6 |
| 2022 | MCQ set | 4 |
| 2021 | Long answer | 2 |
Recommended for you
Move through Chemistry
Follow the Seedha path
Target 95+ in Chemistry
Padho, Likho, Revise and Marks Laao. Chapter 1 of 9 — keep going while the format is fresh.