Some Basic Concepts of Chemistry — NEET/JEE Questions, Notes & Weightage
Class 11 Basic Concepts & Atomic Structure NEET weightage: High 3,922 questions
Covers mole concept, atomic/molecular mass, stoichiometry, limiting reagent, and concentration terms (molarity, molality, normality). The foundational numericals chapter — mole-concept and stoichiometry calculations appear in nearly every NEET/JEE Chemistry paper, often disguised inside other chapters' questions.
Practice all 3,922 Some Basic Concepts of Chemistry questions →Topics inside Some Basic Concepts of Chemistry
Equivalent Mass
99
Mole Concept
35
Stoichiometry & Stoichiometric Calculations
32
Reactions in Solutions
14
Laws Of Chemical Combination
1
Significant figures
1
Si Units
1
Frequently asked questions
Why is this chapter important beyond its own questions?
Mole-concept calculations (limiting reagent, molarity, percentage composition) are the base skill almost every numerical chapter later — Equilibrium, Electrochemistry, Solutions — assumes you already have cold.
What numerical type is asked most directly?
Limiting reagent problems and converting between molarity/molality/mole fraction are the most frequently repeated direct question formats.