Class 10 / Science
Class 10 Science Carbon and its Compounds Worksheet
Practice covalent bonding, hydrocarbons, functional groups, homologous series, ethanol, ethanoic acid, and soaps.
advanced45 minutesAnswer key included
Learning objective
Practise carbon bonding, catenation, hydrocarbons, functional groups, homologous series, ethanol, ethanoic acid, soaps, and detergents.
Questions
- Why does carbon form covalent compounds?
- What is catenation?
- Define hydrocarbon.
- Differentiate saturated and unsaturated hydrocarbons.
- What is a homologous series?
- Name the functional group of alcohols.
- Write two properties of ethanol.
- Write two properties of ethanoic acid.
- How do soaps clean oily dirt?
- Why are detergents useful in hard water?
Answer key
Show suggested answers
- Carbon has four valence electrons and shares electrons to complete its octet, so it forms covalent compounds.
- Catenation is the ability of carbon to bond with itself and form long chains, branched chains, and rings.
- A hydrocarbon is a compound made only of carbon and hydrogen.
- Saturated hydrocarbons have only single bonds. Unsaturated hydrocarbons have at least one double or triple bond.
- A homologous series is a family of organic compounds with the same functional group and similar chemical properties, where consecutive members differ by CH2.
- The functional group of alcohols is -OH.
- Ethanol is a liquid, burns with a clean flame, and mixes with water.
- Ethanoic acid has a sour taste, turns blue litmus red, and reacts with carbonates to produce carbon dioxide.
- Soap molecules form micelles. The oil-loving part traps oily dirt and the water-loving part helps wash it away.
- Detergents are useful in hard water because they form lather more easily than soaps and do not form insoluble scum as readily.
How to use this worksheet
Students can solve the questions independently first, then review errors with a parent or teacher. Teachers can use it as a short class activity, homework sheet, or revision check.
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