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Class 10 Carbon and its Compounds worksheet
CBSE Science. Homologous series, functional groups, combustion, esters. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
The formula of propane is:
- C₃H₈
- C₃H₇Cl
- C₂H₆
- C₂H₅COOH
Answer
(a) C₃H₈
alkanes, 3 carbon atoms
- 2.
The compound CH₃CH₂Cl belongs to the homologous series of:
- aldehydes
- carboxylic acids
- alkanes
- haloalkanes
Answer
(d) haloalkanes
functional group: –Cl (halo group)
- 3.
Carbon forms bonds mainly by:
- gaining electrons
- losing electrons
- sharing electrons (covalent bonds)
- forming ions
Answer
(c) sharing electrons (covalent bonds)
Section B · short answer
- 4.
Write the name and formula of the fourth member of the aldehyde series.
Answer
Butanal, C₃H₇CHO
the aldehydes start at 1 carbon atom
- 5.
Write the balanced equation for the complete combustion of pentanol (C₅H₁₁OH).
Answer
2C₅H₁₁OH + 15O₂ → 10CO₂ + 12H₂O
products are carbon dioxide and water
Section C · long answer
- 6.
A compound X (C₂H₄O₂) turns blue litmus red and gives a gas with sodium carbonate that turns lime water milky. Identify X and write the equation.
Answer
X is ethanoic acid: 2CH₃COOH + Na₂CO₃ → 2CH₃COONa + H₂O + CO₂.
Fresh sheets for your child
In the app, every Carbon and its Compounds sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
Coming soon for Android and iPhone.