Carbon and Its Compounds is a key chapter of CBSE Class X Science (NCERT Chapter 4). It explains covalent bonding, why carbon forms so many compounds through tetravalency and catenation, saturated and unsaturated hydrocarbons, chains, branches and rings, homologous series, functional groups and the naming of carbon compounds. It also covers combustion, oxidation, addition and substitution reactions, and how soaps and detergents clean. Each practice test here is timed, shows your score instantly and lets you review every answer with the correct option. New question sets are added regularly, so come back often for fresh practice.