PYQSidePowered byPrepblink ExamsMy practice

Haloalkanes and Haloarenes

JEE Main 2024 (Online) 9th April Morning ShiftMCQMedium📈 Topic in 31% papers+4−1
Ques. 1JEE Main 2024, 9 April (Morning Shift)

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below :

  1. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  2. Both (A) and (R) are correct and (R) is the correct explanation of (A)
  3. (A) is not correct but (R) is correct
  4. (A) is correct but (R) is not correct

Answer

(2) Both (A) and (R) are correct and (R) is the correct explanation of (A)

Solution

Nu- + C6H5CH2Br [Nu CH2(C6H5) Br]

C6H5CH2Nu + Br-

In the trigonal bipyramidal transition state the central carbon has a partly bonded p-orbital. In benzyl bromide this p-orbital overlaps with the π-system of the ring, so the transition state is stabilised and the activation energy is lowered; ethyl bromide has no such conjugation.

Hence (A) and (R) are both correct and (R) explains (A).

Answer: (2)

Keep practising — Haloalkanes and Haloarenes

Ques. 2JEE Main 2024, 9 April (Morning Shift)

In the following sequence of reactions, the major products B and C respectively are : [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 3JEE Main 2024, 9 April (Evening Shift)

[figure] In the above reaction product 'P' is

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 4JEE Main 2024, 8 April (Morning Shift)

Which among the following compounds will undergo fastest SN2 reaction.

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 5JEE Main 2024, 8 April (Evening Shift)

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

  1. Both Statement I and Statement II are false
  2. Statement I is false but Statement II is true
  3. Statement I is true but Statement II is false
  4. Both Statement I and Statement II are true
Ques. 6JEE Main 2024, 6 April (Morning Shift)

Match List I with List II Choose the correct answer from the options given below:

  1. A-II, B-IV, C-I, D-III
  2. A-III, B-I, C-IV, D-II
  3. A-III, B-II, C-IV, D-I
  4. A-I, B-II, C-III, D-IV
Ques. 7JEE Main 2024, 6 April (Morning Shift)

The major products from the following reaction sequence are product A and product B. [figure] The total sum of electrons in product A and product B are (nearest integer)

Ques. 8JEE Main 2024, 6 April (Evening Shift)

[figure] Consider the above chemical reaction. Product "A" is :

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 9JEE Main 2024, 5 April (Morning Shift)

The number of halobenzenes from the following that can be prepared by Sandmeyer's reaction is [figure]

Ques. 10JEE Main 2024, 5 April (Evening Shift)

Identify the major product in the following reaction. [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 11JEE Main 2024, 4 April (Morning Shift)

[figure] Identify B and C and how are A and C related?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]

All Haloalkanes and Haloarenes PYQs →

PDFDownload Haloalkanes and Haloarenes PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
All JEE Main Chemistry chapters
Physical ChemistrySome Basic Concepts of ChemistryStructure of AtomStates of MatterThermodynamicsEquilibriumRedox ReactionsSolid StateSolutionsElectrochemistryChemical Kinetics
Inorganic ChemistryClassification of Elements and Periodicity in PropertiesChemical Bonding and Molecular Structures-Block Elementsp-Block Elements (Group 13 & 14)Environmental ChemistryGeneral Principles of Isolation of Elementsp-Block Elements (Group 15–18)d- and f-Block ElementsCoordination Compounds
Organic ChemistryOrganic Chemistry – Some Basic Principles and TechniquesIsomerismHydrocarbonsHaloalkanes and HaloarenesAlcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAminesBiomoleculesPrinciples Related to Practical Chemistry