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NEET Chemistry · Haloalkanes & Haloarenes · Set 3 (Q61-90)

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  1. 61.
    The major product of the following reaction is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  2. 62.

    The decreasing order of the reaction rate with nucleophile is
    (I) (II) (III) (IV)
    1. (1)IV III I II
    2. (2)IV III II I
    3. (3)I II III IV
    4. (4)III IV II I
  3. 63.
    The products in the reaction given below are………… denotes a free radical.
    1. (1)Meso forms
    2. (2)Racemic mixture
    3. (3) - and -forms
    4. (4)Cis-trans isomers
  4. 64.
    Which of the following will not undergo reaction with ? [NEET 2024]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  5. 65.
    How many stereoisomers does this molecule have?.
    1. (1)8
    2. (2)2
    3. (3)4
    4. (4)6
  6. 66.
    When 1-chloro butane is treated with aqueous it gives P. However, when it is treated with alcoholic it gives . Identify the products and respectively
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  7. 67.
    Which among the following compounds will undergo fastest reaction.
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  8. 68.
    Two statements are given below
    Statement I: Chlorobenzene on nitration gives 1-chloro4 -nitrobenzene as major product
    Statement II: Chlorobenzene undergoes nitration slowly than benzene
    Identify the correct answer
    1. (1)Statement I, II are correct
    2. (2)Statements I, II are incorrect
    3. (3)Statement I correct but statement II is incorrect
    4. (4)Statement II correct but statement I is incorrect
  9. 69.
    The given compound is an example of [NEET 2023]
    1. (1)aryl halide
    2. (2)allylic halide
    3. (3)vinylic halide
    4. (4)benzylic halide
  10. 70.
    Which one is most reactive towards ?.
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  11. 71.
    The major products of the following reaction are :
    1. (1)and Methanol
    2. (2)and Methanol
    3. (3)and Formic Acid
    4. (4)and Formic Acid
  12. 72.
    What products are formed when the following compound is treated with in the presence
    of ? [AIPMT 2014]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  13. 73.
    Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
    Assertion (A) : Haloalkanes react with KCN to form alkyl cyanides as a main product while with AgCN form isocyanide as the main product.
    Reason (R): KCN and AgCN both are highly ionic compounds.In the light of the above statement, choose the most appropriate answer from the options given below:
    1. (1)(A) is correct but (R) is not correct
    2. (2)Both (A) and (R) are correct but (R) is not the correct explanation of (A)
    3. (3)(A) is not correct but (R) is correct
    4. (4)Both (A) and (R) are correct and (R) is the correct explanation of (A)
  14. 74.
    An organic compound on reaction with Na/diethyl ether gives a
    hydrocarbon which on monochlorination gives only one chloro derivative then, is
    1. (1)‐butyl chloride
    2. (2)‐butyl chloride
    3. (3)‐butyl chloride
    4. (4)‐butyl chloride
  15. 75.
    Among the following organic halides in the increasing order of their dehydrohalogenation reactions in the presence of alcoholic
    (A) (B)
    CH3CH(Br)CH3 CH33CBr
    (C) (D)
    1. (1)A B C D
    2. (2)D B C A
    3. (3)A C B D
    4. (4)B A C D
  16. 76.
    Compound(s) which will liberate carbon dioxide with sodium bicarbonate solution is/are:
    1. (1)B and C only
    2. (2)B only
    3. (3)A and B only
    4. (4)C only
  17. 77.
    A compound of molecular formula shows optical isomerism, compound will be
    1. (1)2,3‐dimethylpentane
    2. (2)2,2‐dimethylbutane
    3. (3)2‐methylhexane
    4. (4)none of these
  18. 78.
    n-propyl bromide on treating with alcoholic produces
    1. (1)propyne
    2. (2)propanol
    3. (3)propane
    4. (4)propene.
  19. 79.
    Given below are two statements:
    Statement I: ' bond is stronger in than
    Statement II: The given optically active molecule,

    on hydrolysis gives a solution that can rotate the plane polarized light.
    In the light of the above statements, choose the correct answer from the options given below
    1. (1)Statement I is false but Statement II is true
    2. (2)Both Statement I and Statement II are true
    3. (3)Both Statement I and Statement II are false
    4. (4)Statement I is true but Statement II is false
  20. 80.
    In the following series of reactions identify the major products respectively
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  21. 81.
    The decreasing order of reactivity of the following compounds towards nucleophilic substitution is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  22. 82.
    Identify the chiral molecule from following.
    1. (1)2-Bromopropane
    2. (2)2-Bromo-2-methylbutane
    3. (3)2-Bromo-3-methylbutane
    4. (4)3-Bromopentane
  23. 83.
    Given below are two statements:
    Statement (I): Alcohols are formed when alkyl chlorides are treated with aqueous potassium hydroxide by elimination reaction.
    Statement (II): In alcoholic potassium hydroxide, alkyl chlorides form alkenes by abstracting the hydrogen from the -carbon.
    In the light of the above statements, choose the most appropriate answer from the options given below:
    1. (1)Both Statement I and Statement II are incorrect
    2. (2)Both Statement I and Statement II are correct
    3. (3)Statement I is incorrect but Statement II is correct
    4. (4)Statement I is correct but Statement II is incorrect
  24. 84.
    How many chiral carbon atoms are present in 2,3,4-trichloropentane?
    1. (1)4
    2. (2)1
    3. (3)2
    4. (4)3
  25. 85.
    Decreasing order towards 1 reaction for the following compounds is:
    1. (1)a>c>d>b
    2. (2)a>b>c>d
    3. (3)b>d>c>a
    4. (4)d>b>c>a
  26. 86.
    Increasing order of reactivity of the following compounds for substitution is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  27. 87.
    Consider the following molecule(X).
    The structure of is
    The major product formed when the given molecule is treated with is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  28. 88.
    Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R :
    Assertion A : Aryl halides cannot be prepared by replacement of hydroxyl group of phenol by halogen atom.
    Reason R : Phenols react with halogen acids violently. In the light of the above statements, choose the most appropriate from the options given below:
    1. (1)Both and are true but is NOT the correct explanation of
    2. (2) is false but is true
    3. (3) is true but is false
    4. (4)Both and are true and is the correct explanation of
  29. 89.
    The major product formed in the Friedel-Craft acylation of chlorobenzene is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  30. 90.
    The increasing order of the reactivity of the following compounds towards electrophilic aromatic substitution reactions is :
    1. (1)II < I < III
    2. (2)III < II < I
    3. (3)III < I < II
    4. (4)I < III < II