Carbon and Its Compounds Book Back Questions

10th Standard EM

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Science

Time : 00:45:00 Hrs
Total Marks : 30
    3 x 1 = 3
  1. The molecular formula of an open chain organic compound is C3H6. The class of the compound is

    (a)

    alkane

    (b)

    alkene

    (c)

    alkyne

    (d)

    alcohol

  2. The IUPAC name of an organic compound is 3-Methyl butan-1-ol. What type compound it is?

    (a)

    Aldehyde

    (b)

    Carboxylic acid

    (c)

    Ketone

    (d)

    Alcohol

  3. Which of the following are used as anaesthetics?

    (a)

    Carboxylic acids

    (b)

    Ethers

    (c)

    Esters

    (d)

    Aldehydes

  4. 3 x 1 = 3
  5. The general molecular formula of alkynes is _____________

    ()

    CnH2n-2

  6. In IUPAC name, the carbon skeleton of a compound is represented by _________ (root word / prefix / suffix)

    ()

    root word

  7. Dehydration of ethanol by conc. Sulphuric acid forms _______ (ethene/ ethane)

    ()

    ethene

  8. 5 x 1 = 5
  9. Functional group –OH

  10. (1)

    Benzene

  11. Heterocyclic

  12. (2)

    Furan

  13. Unsaturated

  14. (3)

    Potassium stearate

  15. Soap

  16. (4)

    Alcohol

  17. Carbocyclic

  18. (5)

    Ethene

    2 x 2 = 4
  19. How is ethanoic acid prepared from ethanol? Give the chemical equation.

  20. Differentiate soaps and detergents.

  21. 2 x 4 = 8
  22. How is ethanol manufactured from sugarcane?

  23. Explain the mechanism of cleansing action of soap.

  24. 1 x 7 = 7
  25. The molecular formula of an alcohol is C4H10O. The locant number of its –OH group is 2.
    (i) Draw its structural formula.
    (ii) Give its IUPAC name.
    (iii) Is it saturated or unsaturated?

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