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Subjects

Science

Covalent bonding

सहसंयोजक बंधन

In Class 10 Science, this topic from “Carbon and its Compounds” explains how carbon atoms form covalent bonds by sharing pairs of electrons to achieve greater stability. Students learn the difference between single, double and triple covalent bonds and relate these bond types to the structures of methane, ethene and ethyne. The topic also helps them understand why carbon forms a wide variety of compounds and how bonding influences their basic structures and properties.

Practice questions

What is the valency of carbon?EasyLevel 2What type of bonds are present between carbon atoms in saturated hydrocarbons?EasyLevel 2In a methane molecule, how many hydrogen atoms are joined to one carbon atom by single covalent bonds?EasyLevel 2Why are covalent compounds generally poor conductors of electricity?EasyLevel 15Why do covalent compounds generally have low melting and boiling points?EasyLevel 15Why is graphite a good conductor of electricity?MediumLevel 15Why is graphite used as a lubricant?MediumLevel 15How is the valency of carbon satisfied in methane?MediumLevel 15Which statement shows correct understanding of a recessive trait?MediumLevel 20Which gas do plants mainly take in for photosynthesis?EasyLevel 23What does tetravalency of carbon mean?EasyLevel 1How many valence electrons does carbon have?EasyLevel 1