March 08, 2015

ONLINE TEST - Ethers - EM

This Quiz is a Simple test for +2 Science group students which contain Questions asked from March - 2006 to March - 2017 in Ethers. Just participate in it and test your skill.

  1. According to Lewis concept of acids and bases, ethers are
    2. acidic
    basic
    neutral
    amphoteric

  2. An organic compound C4H10O when heated with excess HI gives only one type of alkyl iodide. The Compound is
    3. diethyl ether
    methyl n-propyl ether
    methyl iso propyl ether
    n-butyl alcohol

  3. Anisole on bromination yields
    4. m - bromoanisole
    o - bromoanisole
    o- & p - bromoanisole
    benzoic acid

  4. Diethyl ether behaves as a
    5. Lewis acid
    Lewis base
    Neutral compound
    Bronsted acid

  5. Diethyl ether can be decomposed with
    6. HI
    KMnO4
    NaOH
    H2O

  6. Ether is formed when alkyl halide is treated with sodium alkoxide. This method is known as
    7. Hoffmann's reaction
    Williamson’s synthesis
    Wurtz reaction
    Kolbe's reaction

  7. Ethers should not be evaporated to dryness because
    8. they form explosive peroxide
    they are insoluble in water
    they are inert
    they are lighter than water

  8. Higher ethers can be prepared from lower members by the action of
    9. conc. H2SO4
    AgOH
    sodium alkoxide
    Grignard reagent

  9. Number of ether isomers possible for (the molecular formula) C4H10O is
    10. 7
    5
    4
    3

  10. Oxygen atom of ether is
    11. more / very reactive
    replaceable
    oxidizing
    (comparatively) inert

  11. The compound mixed with ethanol to serve as substitute for petrol is
    12. methoxy methane
    ethoxy methane
    methanol
    ethanal

  12. The IUPAC name of phenatole is
    13. Phenoxy benzene
    Ethoxy benzene
    Methoxy benzene
    Propoxy benzene

  13. The preparation of diethyl ether by Williamson's synthesis is an example of
    14. nucleophilic addition reaction
    electrophilic addition reaction
    electrophilic substitution reaction
    nucleophilic substitution reaction

  14. When ether is exposed to air for some time, an explosive substance produced is
    15. peroxide
    TNT
    superoxide
    gun cotton. / Oxide

  15. When ethyl iodide is treated with dry silver oxide, it forms
    16. ethyl alcohol
    diethyl ether
    silver ethoxide
    ethyl methyl ether

  16. Which among the following is unsymmetrical ether?
    17. C6H5 – O – C6H5
    C2H5 – O – C2H5
    CH3 – O – CH3
    C6H5 – O – CH3

  17. Which of the following produces ether, when heated with Conc. H2SO4 at 413 K?
    18. Organic acid
    Aldehyde
    Alcohol
    Ketone

  18. Which one of the following ethers is used in perfumery?
    19. dimethyl ether
    diethyl ether
    ethyl methyl ether
    methyl phenyl ether

  19. Which one of the following is simple ether?
    20. CH3–O–C2H5
    C6H5–O–CH3
    C2H5–O–C2H5
    C3H7–O–C2H5

  20. Zeisel's method of detection and estimation of alkoxy group in alkaloids involves the reaction of ether with
    21. HI
    Cl2
    P
    dil. HCl

  21. When diethyl ether reacts with chlorine in presence of sunlight it gives
    22. α - chlorodiethyl ethe
    α, α’ - dichlorodiethyl ether
    perchlorodiethyl ether
    both (a) & (b)

  22. Intermolecular hydrogen bonds are not present in
    23. CH3COOH
    C2H5 – O – C2H5
    CH3CH2OH
    C2H5NH2

  23. Strong mineral acids ____________ the ethereal oxygen forming oxonium salts
    24. Electronate
    protonate
    deprotonate
    dehydrate

  24. IUPAC Name of this compound CH3 – O – CH – CH3:
                                                                      |
                                                                      CH3
    25. 1-Methoxy propane
    Methyl isopropyl ether
    Isopropyl methyl ether
    2-Methoxy propane

  25. The isomerism exhibited by C2H5 – O – C2H5  and CH3 – O – CH – CH3 is
                                                                                                      |
                                                                                                    CH3
    26. Functional
    Metamerism
    Position
    Chain

  26. Bromination of anisole gives
    27. o - bromoanisole
    m - bromoanisole
    p - bromoanisole
    both (a) and (c)

  27. Which one of the following does not form peroxide easily?
    28. Diethyl ether
    Ethyl methyl ether
    Dimethyl ether
    Anisole

  28. The compound that acts as a solvent for Grignard reagent is
    29. Ethyl alcohol
    Diethyl ether
    Acetone
    Benzene

  29. Anisole is used in
    30. refrigerant
    anesthetic
    perfumery
    substitute for petrol

  30. The number of ether isomers possible for the molecular formula C5H12O is
    31. 5
    6
    4
    7

  31. ________________ is used as a refrigerant in refrigerator
    32. Methoxy benzene
    Ethoxy ethane
    Methoxy methane
    Ethoxy benzene

  32. Diethyl ether is used as a solvent for
    33. Lucas reagent
    Fenton’s reagent
    Tollen’s reagent
    Grignard reagent

  33. With a mixture of Conc. HNO3 and Conc. H2SO4 Anisole gives
    34. ortho nitro anisole
    para nitro anisole
    ortho and para nitro anisole
    meta nitro anisole

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