Choose a chapter
Nine chemistry-related chapters, including the environmental and calculation foundations used in WBBSE Physical Science.
Concerns about Our Environment
Study atmospheric changes, greenhouse effect, ozone depletion, pollution and sustainable energy choices.
Open chapter • 5 marks →Behaviour of Gases
Understand Boyle’s law, Charles’s law, absolute temperature, ideal gas behaviour and gas-law numericals.
Open chapter • 8 marks →Chemical Calculations
Learn atomic mass, molecular mass, mole concept, Avogadro number and stoichiometric calculations.
Open chapter • 4 marks →Periodic Table and Periodicity
Explore modern periodic law, groups, periods and periodic trends in atomic properties.
Open chapter • 6 marks →Ionic and Covalent Bonding
Understand electron transfer, electron sharing, Lewis structures and properties of ionic and covalent compounds.
Open chapter • 6 marks →Electricity and Chemical Reactions
Study electrolytes, electrolysis, electrode reactions, electroplating and practical applications of electrochemistry.
Open chapter • 6 marks →Inorganic Chemistry in Laboratory and Industry
Learn preparation, properties, tests and industrial uses of important inorganic gases, acids, bases and salts.
Open chapter • 8 marks →Metallurgy
Understand ores, concentration, roasting, calcination, reduction, refining, alloys and corrosion control.
Open chapter • 5 marks →Organic Chemistry
Study carbon bonding, hydrocarbons, functional groups, homologous series and important organic reactions and compounds.
Open chapter • 8 marks →