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Subjects

Science

Carbon and its Compounds

कार्बन और उसके यौगिक

In this Class 10 Science topic from “Chemical Substances – Nature and Behaviour,” students explore why carbon forms an exceptionally large variety of compounds through tetravalency and catenation. They learn about covalent bonding, hydrocarbons, homologous series, functional groups, and basic organic nomenclature. The topic also explains key reactions such as combustion, oxidation, addition, and substitution, along with the properties and uses of ethanol, ethanoic acid, soaps, and detergents in everyday life.

Practice questions

What does the blue flame of a gas stove indicate?EasyLevel 2What does a yellow, smoky flame generally indicate?EasyLevel 2Which reaction is generally shown by saturated hydrocarbons?EasyLevel 2Which type of reaction is characteristic of unsaturated hydrocarbons?EasyLevel 2What is the process of adding hydrogen to vegetable oil in the presence of a nickel catalyst called?EasyLevel 2Which carboxylic acid is obtained when ethanol is oxidised with alkaline potassium permanganate?EasyLevel 2A pleasant-smelling compound is formed when ethanol reacts with ethanoic acid. What is this reaction called?EasyLevel 2What is the process of alkaline hydrolysis of an ester to produce soap called?EasyLevel 2Which part of a soap molecule attracts water molecules?EasyLevel 2Which part of a soap molecule attracts oil and dirt?EasyLevel 2Which structure do soap molecules form around oily dirt in water?EasyLevel 2Why does soap not produce good lather in hard water?EasyLevel 2Why are detergents effective even in hard water?EasyLevel 2Soaps are sodium or potassium salts of which type of acids?EasyLevel 2What is the phenomenon in which organic compounds have the same molecular formula but different structures called?EasyLevel 2Why does carbon form a very large number of compounds?EasyLevel 2Why does carbon generally form covalent compounds rather than ionic compounds?EasyLevel 2Why do carbon compounds generally have low melting and boiling points?EasyLevel 2Why are most carbon compounds poor conductors of electricity?EasyLevel 2What type of hydrocarbon is propane?EasyLevel 2