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🧾 CBSE · Class 10

Class 10 Science: Carbon and its Compounds Worksheet (with Answers)

A free, print-ready worksheet on Carbon and its Compounds for CBSE Class 10 Science, with a matching answer key. Use the sample below, or build your own with the exact mix of questions you need — no login, no ads.

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Sample worksheet

7 of 18 questions from this chapter. Generate your own for the full set, more variations, and a clean print layout.

  1. 1. Carbon achieves a stable octet by:
    • (a) sharing electrons (covalent bonds)
    • (b) gaining 4 electrons
    • (c) losing 4 electrons
    • (d) forming ions
  2. 2. The ability of carbon to form long chains is called:
    • (a) isomerism
    • (b) allotropy
    • (c) catenation
    • (d) tetravalency
  3. 3. The simplest hydrocarbon is:
    • (a) methane
    • (b) butane
    • (c) propane
    • (d) ethane
  4. 4. The functional group in ethanoic acid is:
    • (a) –COOH
    • (b) –CHO
    • (c) –CO–
    • (d) –OH
  5. 5. Define tetravalency of carbon.
  6. 6. Name the gas formed when ethanol reacts with sodium.
  7. 7. What is a homologous series? Give two characteristics.
View answers
  1. 1. (a) sharing electrons (covalent bonds) — Carbon shares electrons to form four covalent bonds.
  2. 2. (c) catenation — Catenation is self-linking of carbon atoms.
  3. 3. (a) methane — Methane (CH₄) is the simplest alkane.
  4. 4. (a) –COOH — Ethanoic acid contains the carboxylic acid group –COOH.
  5. 5. Carbon has four valence electrons, so it can form four covalent bonds.
  6. 6. Hydrogen gas (along with sodium ethoxide).
  7. 7. A homologous series is a family of organic compounds with the same functional group and a general formula, where consecutive members differ by –CH₂–. Characteristics: (i) members have similar chemical properties, and (ii) their physical properties (like boiling point) change gradually with increasing molecular size.
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FAQ

Is this Class 10 Science worksheet on Carbon and its Compounds free?
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Does the Carbon and its Compounds worksheet come with answers?
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Which board and class is this for?
This worksheet is aligned to CBSE Class 10 Science, chapter “Carbon and its Compounds”.