Back to Haloalkanes & Haloarenes

Set 3 of 10 · Questions 61-90 of 272

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

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. 61.
    Following is the substitution reaction in which replaces .
    To obtain propanonitrile, - should be
    1. (1)chloroethane
    2. (2)1-chloropropane
    3. (3)chloromethane
    4. (4)2-chloropropane.
  2. 62.
    Identify the correct products, when ethanol reacts with
    1. (1)Chloroethane, Hydrochloric acid and Phosphorus acid
    2. (2)Chloroethane, Hydrochloric acid and Phosphoric acid
    3. (3)Chloroethane, Sulfuric acid and Phosphorous oxy chloride
    4. (4)Chloroethane, Hydrochloric acid and Phosphorous oxy chloride
  3. 63.
    The structure of the major product formed in the following reaction is:
    major product
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  4. 64.
    The major product of the following reaction is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  5. 65.

    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
  6. 66.
    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
  7. 67.
    Which of the following will not undergo reaction with ? [NEET 2024]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  8. 68.
    How many stereoisomers does this molecule have?.
    1. (1)8
    2. (2)2
    3. (3)4
    4. (4)6
  9. 69.
    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)
  10. 70.
    Which among the following compounds will undergo fastest reaction.
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  11. 71.
    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
  12. 72.
    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
  13. 73.
    Which one is most reactive towards ?.
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  14. 74.
    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
  15. 75.
    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)
  16. 76.
    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)
  17. 77.
    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
  18. 78.
    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
  19. 79.
    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
  20. 80.
    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
  21. 81.
    n-propyl bromide on treating with alcoholic produces
    1. (1)propyne
    2. (2)propanol
    3. (3)propane
    4. (4)propene.
  22. 82.
    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
  23. 83.
    In the following series of reactions identify the major products respectively
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  24. 84.
    The decreasing order of reactivity of the following compounds towards nucleophilic substitution is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  25. 85.
    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
  26. 86.
    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
  27. 87.
    How many chiral carbon atoms are present in 2,3,4-trichloropentane?
    1. (1)4
    2. (2)1
    3. (3)2
    4. (4)3
  28. 88.
    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
  29. 89.
    Consider the following sequence of reactions: 11.25 mg of chlorobenzene will produce of product B . (Consider the reactions result in complete conversion.) [Given molar mass of and Cl as and respectively]
  30. 90.
    Consider the above sequence of reactions. 151 g of 2-bromopentane is made to react. Yield of major product P is whereas Q is . Mass of product Q obtained is g.
    (Given molar mass in )