Topics
Some Basic Concepts of Chemistry
Introduction to Analytical Chemistry
- Introduction of Analytical Chemistry
- Analysis
- Mathematical Operation and Error Analysis
- Determination of Molecular Formula
- Chemical Reactions and Stoichiometric Calculations
- Limiting Reagent
- Concentration of a Solution
- Use of Graph in Analysis
Basic Analytical Techniques
- Introduction of Some Analytical Techniques
- Purification of Solids
- Crystallisation Method
- Fractional Crystallization
- Simple Distillation Method
- Solvent Extraction
- Chromatography Method
- Chromatography Method > Adsorption Chromatography
- Chromatography Method > Partition Chromatography
Structure of Atom
Chemical Bonding
- Concept of Chemical Bonding
- Kossel-lewis Approach to Chemical Bonding - Octet Rule
- Kossel and Lewis Approach to Chemical Bonding
- Formal Charge
- Limitations of the Octet Rule
- Valence Shell Electron Pair Repulsion Theory (VSEPR)
- Valence Bond Theory (VBT)
- Molecular Orbital Theory
- Parameters of Covalent Bond
- Dipole Moment
- Resonance
Redox Reactions
- Introduction of Redox Reactions
- Oxidation Number
- Balancing of Redox Reactions
- Redox Reaction and Electrode Potential
Modern Periodic Table
- Introduction of Periodic Table
- Structure of the Modern Periodic Table
- Periodic Table and Electronic Configuration
- Blockwise Characteristics of Elements
- Periodic Trends in Elemental Properties
Elements of Group 1 and 2
- Hydrogen
- Alkali Metals and Alkaline Earth Metals
- Some Important Compounds of Elements of S-block
Elements of Group 13, 14 and 15
- Electronic Configuration of Elements of Groups 13, 14 and 15
- Trends in Atomic and Physical Properties of Elements of Groups 13, 14 and 15
- Chemical Properties of the Elements of the Groups 13,14 and 15
- Carbon: A Versatile Element
- Allotropes of Carbon > Diamond
- Molecular Structures of Some Important Compounds of the Group 13, 14 and 15 Elements
- Chemistry of Notable Compounds of Elements of Groups 13, 14 and 15
States of Matter
- States of Matter
- Intermolecular Forces
- Characteristic Properties of Gases
- Gas Laws
- Ideal Gas Equation
- Kinetic Molecular Theory of Gases
- Deviation from Ideal Behaviour
- Liquefaction of Gases and Critical Constant
- Liquid State
Adsorption and Colloids
- Introduction of Adsorption
- Adsorption
- Types of Adsorption
- Factors Affecting Adsorption of Gases on Solids
- Adsorption Isotherms (Freundlich and Langmuir Adsorption Isotherm)
- Applications of Adsorption
- Catalysis
- Adsorption Theory of Heterogeneous Catalysis
- Colloids
Chemical Equilibrium
- Introduction of Chemical Equilibrium
- Equilibrium in Physical Processes
- Equilibrium in Chemical Processes - Dynamic Equilibrium
- Law of Mass Action and Equilibrium Constant
- Homogeneous and Heterogenous Equilibria
- Characteristics of Equilibrium Constant
- Applications of Equilibrium Constants
- Le Chaterlier's Principle and Factors Altering the Composition of Equilibrium
- Industrial Application
Nuclear Chemistry and Radioactivity
- Introduction: Nuclear Chemistry is a Branch of Physical Chemistry
- Classification of Nuclides
- Nuclear Stability
- Radioactivity
- Radioactive Decays
- Modes of Decay
- Nuclear Reactions
- Applications of Radio Isotopes
Basic Principles of Organic Chemistry
- Organic Chemistry
- Structural Representation of Organic Molecules
- Classification of Organic Compounds
- Nomenclature
- Isomerism
- Theoretical Basis of Organic Reactions
Hydrocarbons
Chemistry in Everyday Life
- Chemistry in Everyday Life
- Basics of Food Chemistry
- Compounds with Medicinal Properties
- Cleansing Agents
Estimated time: 7 minutes
- Scientific notation (exponential notation)
- Precision and accuracy of measurement
- Significant Figures
- Rules for deciding significant figures
- Calculations with significant figures
Maharashtra State Board: Class 11
Definition: Percentage Error
The error expressed as a percentage of the true or measured value of a quantity, used to determine the accuracy of a measurement, is called the percentage error.
Maharashtra State Board: Class 11
Definition: Accuracy
The degree of closeness of a measured value to the true value, which increases as the error decreases, is called accuracy.
Maharashtra State Board: Class 11
Formula: Percentage Error in a
If the error in a is Δa, then:
Percentage error in a = \[\frac {Δa}{a}\] × 100
Maharashtra State Board: Class 11
Formula: Percentage Error in a^n
If the error in a is Δa, then:
Percentage error in an = ±n × \[\frac {Δa}{a}\] × 100
Maharashtra State Board: Class 11
Formula: Percentage error in ab
If the error in a is Δa and in b is Δb, then:
Percentage error in ab = \[\left(\frac{\Delta a}{a}+\frac{\Delta b}{b}\right)\times100\]
Maharashtra State Board: Class 11
Formula: Error in Division a/b
If the error in a is Δa and in b is Δb, then:
Percentage error in \[\frac {a}{b}\] = \[\left(\frac{\Delta a}{a}+\frac{\Delta b}{b}\right)\times100\]
Theorem: Accuracy
- The smaller the error, the greater the accuracy.
- For both product and division of two quantities, the percentage errors in the individual quantities are always added (never subtracted) to get the total percentage error.
