Carbon compounds — Flashcards
Maharashtra Board · Class 10 · Science
40 flashcards for Carbon compounds (Maharashtra Board Class 10 Science) to test yourself on key terms and facts.
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What is carbon's valency and electronic configuration?
Answer
Carbon has atomic number 6 and electronic configuration 2,4. It is tetravalent, so it has valency 4.
Why does carbon form covalent bonds instead of forming C4+ or C4- ions?
Answer
Carbon would need to lose or gain 4 electrons, but C4+ and C4- ions are unstable because carbon is very small and the net charge would be too high. Carbon becomes stable by sharing electrons and formi…
What is a covalent bond?
Answer
A covalent bond is formed when two atoms share two valence electrons.
Why do carbon compounds usually have low melting and boiling points?
Answer
Their melting and boiling points are generally below 300°C because the intermolecular attractive forces are weak.
Why are most carbon compounds bad conductors of electricity?
Answer
Most carbon compounds do not have ionic bonds, so they do not produce ions that can carry electric current.
What is catenation?
Answer
Catenation is the ability of carbon atoms to form strong covalent bonds with other carbon atoms, making chains and rings.
Why is carbon able to form such a large number of compounds?
Answer
Carbon forms strong covalent bonds, shows catenation, forms single, double, and triple bonds, can bond with many other elements, and shows isomerism. These features make the number of carbon compounds…
What is a hydrocarbon?
Answer
A hydrocarbon is a compound that contains only carbon and hydrogen.
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