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Carbonyl Compounds 1 Mark Creative Question Paper With Answer Key

12th Standard

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Chemistry

Time : 00:15:00 Hrs
Total Marks : 15

    Multiple Choice Question

    15 x 1 = 15
  1. Of the following, which is the product formed when cyclohexanone undergoes aldol condensation followed by heating?

    (a)

    (b)

    (c)

    (d)

  2. Give the common and IUPAC name of the compound HO-CH2-\(\underset { \overset { | }{ OH } }{ CH } \)-CHO

    (a)

    glyceraldehyde, hydroxy prop anal

    (b)

    glyceraldehyde, 2, 3 - dihydroxy prop anal

    (c)

    crotonaldehyde, hydroxy propanal

    (d)

    crotonaldehyde, 2, 3 - dihydroxy propanal

  3. Cannizaro reaction is not given by _______.

    (a)

    (b)

    (c)

    CH3CHO

    (d)

    HCHO

  4. Which among the following on oxidation with alk.KMnO4 will give butanone?

    (a)

    Butan -1- ol

    (b)

    Butan - 2-ol

    (c)

    Both (a) and (b)

    (d)

    Neither (a) nor (b)

  5. The IUPAC name of the compound

    (a)

    4 - methoxy - 2 - nitro benzaldehyde

    (b)

    4 methoxy - 6 - nitro benzaldehyde

    (c)

    2 - formyl- 5 - methoxynitrobenzene

    (d)

    4 formyl - 5 - nitroanisole

  6. Which among the carbonyl compounds cannot be prepared by Rosenmund reduction?

    (a)

    Ketones

    (b)

    Formaldehyde

    (c)

    Acetaldehyde

    (d)

    Both (a) and (b)

  7. Identify 'X'.

    (a)

    (b)

    (c)

    (d)

  8. Which among the following statement is incorrect regarding urotropine?

    (a)

    It is an urinary antiseptic

    (b)

    It is hexa methylene diamine

    (c)

    Used in the preparation of an explosive

    (d)

    All the above


  9. Choose a suitable reagent to carry out the above reaction.

    (a)

    NaBH4

    (b)

    H2/Pd

    (c)

    KMnO4

    (d)

    H2SO4

  10. Which of the following acids do not exhibit optical isomerism?

    (a)

    lactic acid

    (b)

    tartaric acid

    (c)

    maleic acid

    (d)

    both (a) and (b)

  11. A compound 'X' when mixed with ethanol and a drop of concentrated H2SO4 gave a compound with fruity odour. Identify 'X'.

    (a)

    HCHO

    (b)

    CH3OH

    (c)

    CH3COOH

    (d)

    CH3NH2

  12. Pick out the compounds that gives effervescence with aqueous NaHCO3.
    I. C6H5OH
    II. C6H5NH2
    III. (CH3CO)2O
    IV. CH3COOH

    (a)

    I and II

    (b)

    I and IV

    (c)

    III and IV

    (d)

    III and I

  13. Schiff's reagent gives pink colour with _______.

    (a)

    acetone

    (b)

    acetaldehyde

    (c)

    ethyl alcohol

    (d)

    methyl acetate

  14. Isopropyl alcohol vapours with air over silver catalyst at 520 K give _______.

    (a)

    tertbutyl alcohol

    (b)

    acetaldehyde

    (c)

    acetone

    (d)

    2-propanol

  15. Methyl ketones are usually characterised by _______.

    (a)

    the Fehling's solution

    (b)

    the iodoform test

    (c)

    the Schiff's test

    (d)

    the Tollen's reagent

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