Carbon and its Compounds

CBSE Class 10 · Science · 16 past questions

1. Q1 2026

   The formula of functional group for aldehyde is…

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2. Q2 2026

   Directions : For question number 24, two statements are given, one labelled as Assertion (A) and the other is…

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3. Q3 2026

   For Question number 24, two statements are given — one labelled as Assertion (A) and the other labelled as…

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4. Q4 Sample paper 2026-27

   Manjeet wants to wash clothes, but the water available is hard. He compares the action of soap and detergent…

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5. Q5 Sample paper 2026-27

   Which of the following pair of compounds are isomers? (with a figure)

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6. Q6 Sample paper 2026-27

   Carbon forms millions of compounds whereas silicon, which is just below it in the Periodic Table, forms a few…

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7. Q7 Sample paper 2026-27

   Attempt either option A or B.…

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8. Q8 2025

   Write the electron-dot structures of (i) sodium, and (ii) oxygen. Using these structures, show the formation…

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9. Q9 2025

   Choose the *incorrect* statement about the common reaction used in hydrogenation of vegetable oils.

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10. Q10 2024

    Consider the following statements about homologous series of carbon compounds…

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11. Q11 2024

    Which one of the following hydrocarbons is different from the others ?

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12. Q12 2023

    Select washing soda from the following…

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13. Q13 2023

    Consider the structures of the three cyclic carbon compounds A, B and C given below and select the correct… (with a figure)

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14. Q14 2023

    The electron dot structure of chlorine molecule is… (with a figure)

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15. Q15 2023

    The total number of electrons shared in the formation of an ethyne molecule is…

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16. Q16 2022

    Consider the following organic compounds… (with a figure)

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