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JEE Main Chemistry · Haloalkanes & Haloarenes · Set 6 (Q151-180)

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  1. 151.
    Given below are two statements:
    Statement I: The conversion proceeds well in the less polar medium.
    Statement II: The conversion proceeds well in the more polar medium.
    Choose the correct answer from the options given below.
    1. (1)Both Statement I and Statement II are true
    2. (2)Statement I is true but Statement II is false
    3. (3)Statement I is false but Statement II is true
    4. (4)Both Statement I and Statement II are false
  2. 152.
    Which of the following compounds will show retention in configuration on nucleophilic substitution by ion?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  3. 153.
    Which of the following sequence of reactions is suitable to synthesize chlorobenzene? [NEET 2022]
    1. (1)Phenol, , HCl, CuCl
    2. (2)Benzene, HCl
    3. (3)Aniline, HCl, heating
    4. (4)Benzene, , anhydrous
  4. 154.
    Given below are two statements :
    Statement (I) : reactions are 'stereospecific', indicating that they result in the formation of only one stereoisomer as the product.
    Statement (II) : reactions generally result in formation of product as racemic mixtures.
    In the light of the above statements, choose the correct answer from the options given below :
    1. (1)Both Statement I and Statement II are false
    2. (2)Statement I is false but Statement II is true
    3. (3)Statement I is true but Statement II is false
    4. (4)Both Statement I and Statement II are true
  5. 155.
    In case of configuration the group having highest priority is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  6. 156.
    The compound (major product) is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  7. 157.
    Identify the incorrect option from the following:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  8. 158.
    Alkyl halide is converted into alkyl isocyanide by reaction with
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  9. 159.
    The chirality of the compound
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  10. 160.
    The correct statement regarding nucleophilic substitution reaction in a chiral alkyl halide is ;
    1. (1)Retention occurs in reaction and inversion occurs in reaction.
    2. (2)Racemisation occurs in reaction and retention occurs in reaction.
    3. (3)Racemisation occurs in both and reactions.
    4. (4)Racemisation occurs in reaction and inversion occurs in reaction.
  11. 161.
    Which of the following is a structural formula of DDT?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  12. 162.
    Identify the reagent in the following conversion: Alkyl halide Alkyl nitrite
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  13. 163.
    The major product in the reaction
    1. (1)t-Butyl ethyl ether
    2. (2)2,2-Dimethyl butane
    3. (3)2-Methylpent-l-ene
    4. (4)2-Methylprop-l-ene
  14. 164.
    Finkelstein reaction is used for the synthesis of
    1. (1)RF
    2. (2)RI
    3. (3)RCl
    4. (4)RBr
  15. 165.
    Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
    Assertion (A): SN2 reaction of occurs more readily than the SN2 reaction of .
    Reason (R) : The partially bonded unhybridized p-orbital that develops in the trigonal bipyramidal transition state is stabilized by conjugation with the phenyl ring.
    In the light of the above statements, choose the most appropriate answer from the options given below :
    1. (1) is correct but (R) is not correct
    2. (2) is not correct but (R) is correct
    3. (3)Both (A) and (R) are correct but (R) is not the correct explanation of (A)
    4. (4)Both (A) and (R) are correct and (R) is the correct explanation of
  16. 166.
    Which one of the following chlorohydrocarbon readily undergoes solvolysis?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  17. 167.
    In the reaction

    The number of possible isomers for the organic compound is
    1. (1)5
    2. (2)3
    3. (3)2
    4. (4)4
  18. 168.
    Reaction of ‐butyl bromide with sodiummethoxide produces
    1. (1)sodium ‐butoxide
    2. (2)‐butyl methyl ether
    3. (3)isobutane
    4. (4)isobutylene.
  19. 169.
    The number of optical isomers possible for 2-bromo-3chloro butane are
    1. (1)8
    2. (2)10
    3. (3)4
    4. (4)2
  20. 170.
    The correct structure of product 'A' formed in the following reaction.
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  21. 171.
    When sec-butylcyclohexane reacts with bromine in the presence of sunlight, the major
    product is:
    1. (1)1-bromo-1-(butan-2-yl)cyclohexane
    2. (2)1-bromo-2-(butan-2-yl)cyclohexane
    3. (3)2-bromo-2-cyclohexylbutane
    4. (4)2-bromo-3-cyclohexylbutane
  22. 172.
    Which of the following is the geminal dichloride?
    1. (1)1,1-Dichloropropane
    2. (2)1,2-Dichloropropane
    3. (3)1,3-Dichloropropane
    4. (4)2,3-Dichloropropane
  23. 173.
    The major product of the following reaction is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  24. 174.
    The correct order of reactivity of the given chlorides with acetate in acetic acid is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  25. 175.
    The above reaction requires which of the following reaction conditions?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  26. 176.
    The maximum number of RBr producing 2-methylbutane by above sequence of reactions is -(Consider the structural isomers only)
    1. (1)5
    2. (2)4
    3. (3)3
    4. (4)1
  27. 177.
    Arenes on treatment with chlorine in presence of ferric chloride as a catalyst undergo what type of reaction?
    1. (1)Electrophilic substitution
    2. (2)Nucleophilic substitution
    3. (3)Electrophilic addition
    4. (4)Nucleophilic addition
  28. 178.
    Industrial preparation of chloroform employs acetone and
    1. (1)phosgene
    2. (2)calcium hypochlorite
    3. (3)chlorine gas
    4. (4)sodium chloride.
  29. 179.
    The number of halobenzenes from the following that can be prepared by Sandmeyer's reaction is_______
  30. 180.
    Number of moles of AgCl formed in the following reaction is_______,