Back to General Organic Chemistry

Set 14 of 25 · Questions 391-420 of 724

In the print window choose “Save as PDF”. The file prints without a web address or date line.

Mere Teacher

Mere Teacher · Previous Year Questions

JEE Main Chemistry · General Organic Chemistry · Set 14 (Q391-420)

QR code to mereteacher.com

Scan or visit mereteacher.com for free PYQ practice, timed CBT tests, step-by-step solutions and BroBot AI. Answers and solutions are free with a sign-up.

  1. 391.
    In 3,3-dimethylhex-1-en-4-yne, there are , and sp hybridized carbon atoms respectively.
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  2. 392.
    Which of the following has highly acidic hydrogen?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  3. 393.
    The total number of ‐bond electrons in the following structure is
    1. (1)12
    2. (2)16
    3. (3)4
    4. (4)8
  4. 394.
    The major product of the following reaction is :
    1. (1)CH=C=
    2. (2)CH=
    3. (3)CH3CH2C≡CH
    4. (4)
  5. 395.
    The correct name of the following compound is:
    1. (1)-chloro--methyl--nitrobenzene
    2. (2) -chloro- -methyl- -nitrobenzene
    3. (3)-chloro--methyl- -nitrobenzene
    4. (4) -methyl--nitro--chlorobenzene
  6. 396.
    In the following halogenated organic compounds the one with maximum number of chlorine atoms in its structure is :
    1. (1)Chloral
    2. (2)Gammaxene
    3. (3)Chloropicrin
    4. (4)Freon-12
  7. 397.
    Which one of the following compounds is non-aromatic ?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  8. 398.
    Amongst the following compounds, the optically acitve alkane having lowest molecular mass is
    1. (1)–––
    2. (2)
    3. (3)
    4. (4)CH3–CH2–C≡CH
  9. 399.
    The reaction : C–Br C–OH is an example of –
    1. (1)elimination reaction.
    2. (2)substitution reaction.
    3. (3)free radical reaction.
    4. (4)rearrangement reaction.
  10. 400.
    The IUPAC name of ethylidene chloride is :-
    1. (1)1-Chloroethene
    2. (2)1-Chloroethyne
    3. (3)1,2-Dichloroethane
    4. (4)1,1-Dichloroethane
  11. 401.
    Out of the following, the alkene that exhibits optical isomerism is.
    1. (1)3-methyl-2pentene
    2. (2)4-methyl-1-pentene
    3. (3)3-methyl-1-pentene
    4. (4)2-methyl-2-pentene
  12. 402.
    The correct order of acid character of the following compounds is:
    1. (1)II > III > IV > I
    2. (2)III > II > I > IV
    3. (3)IV > III > II > I
    4. (4)I > II > III > IV
  13. 403.
    The ascending acidity order of the following atoms is
    1. (1)C D B A
    2. (2)A B C D
    3. (3)A B D C
    4. (4)D C B A
  14. 404.
    The correct order of acid strength of the following compounds:
    (A) Phenol (B) p-Cresol
    (C) m-Nitrophenol (D) p-Nitrophenol is :
    1. (1)D > C > A > B
    2. (2)B > D > A > C
    3. (3)A > B > D > C
    4. (4)C > B > A > D
  15. 405.
    How many chiral compounds are possible on monochlorination of 2-methylbutane
    1. (1)8
    2. (2)2
    3. (3)4
    4. (4)6
  16. 406.
    Arrange the following in decreasing acidic strength.
    1. (1)A>B>C>D
    2. (2)B>A>C>D
    3. (3)D>C>A>B
    4. (4)D > C> B > A
  17. 407.
    The enolic form of ethyl acetoacetate as below has :
    1. (1)16 sigma bonds and 1 pi- bond
    2. (2)9 sigma bonds and 2 pi- bond
    3. (3)9 sigma bonds and 1 pi- bond
    4. (4)18 sigma bonds and 2 pi- bond
  18. 408.
    The IUPAC name of the following compound is:
    1. (1)Methyl-6-carboxy-2,5-dimethylhexanoate.
    2. (2)2-Carboxy-5-methoxycarbonylhexane.
    3. (3)6-Methoxycarbonyl-2,5-dimethylhexanoic acid.
    4. (4)Methyl-5-carboxy-2-methylhexanoate.
  19. 409.
    Which of the following compounds will most readily be dehydrated to give alkene under acidic condition?
    1. (1)4-Hydroxypentan-2-one
    2. (2)3-Hydroxypentan-2-one
    3. (3)1-Pentanol
    4. (4)2-Hydroxycyclopentanone
  20. 410.
    In 2 reactions, the correct order of reactivity for the following compounds: Cl, Cl, CHCl and CCl is :
    1. (1)Cl > CHCl > Cl > CCl
    2. (2)Cl > Cl > CHCl > CCl
    3. (3)Cl > Cl > CHCl > CCl
    4. (4)CHCl > Cl > Cl > CCl
  21. 411.
    Increasing order of stability among the three main conformations (i.e. eclipse, anti, gauche) of 2-fluoroethanol is
    1. (1)eclipse, gauche, anti
    2. (2)gauche, eclipse, anti
    3. (3)eclipse, anti, gauche
    4. (4)anti, gauche, esclipse
  22. 412.
    CH3 – CHCI – CH2 – CH3 has a chiral centre which one of the following represents its R configuration :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  23. 413.
    Which of the following compounds will show the maximum 'enol' content?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  24. 414.
    The IUPAC name(s) of the following compound is (are)
    1. (1)4-methylchlorobenzene
    2. (2)4-chlorotoluene
    3. (3)1-chloro-4-methylbenzene
    4. (4)1-methyl-4-chlorobenzene
  25. 415.
    Which of the following structures are aromatic in nature?
    1. (1)A,B,C and D
    2. (2)Only A and B
    3. (3)Only A and C
    4. (4)Only B,C and D
  26. 416.
    Among the following the reaction that produce through an electrophilic substitution is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  27. 417.
    While estimating the nitrogen present in an organic compound by Kjeldahl's method, the ammonia evolved from 0.25 g of the compound neutralized 2.5 mL of 2 M . The percentage of nitrogen present in organic compound is.......
  28. 418.
    The number of optical isomers in following compound is:_______
  29. 419.
    The total number of monobromo derivatives formed by the alkanes with molecular formula is (excluding stereo isomers)_____
  30. 420.
    The total number of basic groups in the following form of lysine is :