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Isomerism

JEE Main 2024 (Online) 5th April Evening ShiftMatchingEasy📈 Topic in 17% papers+4−1
Ques. 1JEE Main 2024, 5 April (Evening Shift)

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

  1. (A)-(II), (B)-(I), (C)-(IV), (D)-(III)
  2. (A)-(III), (B)-(I), (C)-(II), (D)-(IV)
  3. (A)-(III), (B)-(I), (C)-(IV), (D)-(II)
  4. (A)-(I), (B)-(III), (C)-(IV), (D)-(II)

Answer

(3) (A)-(III), (B)-(I), (C)-(IV), (D)-(II)

Solution

(A) CH3CH2CH2OH and CH3CH(OH)CH3: –OH position differs ⇒ (A)-(III)

(B) CH3-O-C3H7 and C2H5-O-C2H5: different alkyl groups on O ⇒ (B)-(I)

(C) CH3COCH3 and CH3CH2CHO: ketone vs aldehyde ⇒ (C)-(IV)

(D) C(CH3)4 and (CH3)2CHCH2CH3: different carbon skeleton ⇒ (D)-(II)

Answer: (3)

Keep practising — Isomerism

Ques. 2JEE Main 2024, 4 April (Morning Shift)

The number of different chain isomers for C7H16 is .

Ques. 3JEE Main 2024, 1 February (Morning Shift)

Number of optical isomers possible for 2-chlorobutane .

Ques. 4JEE Main 2024, 1 February (Evening Shift)

Total number of isomeric compounds (including stereoisomers) formed by monochlorination of 2-methylbutane is .

Ques. 5JEE Main 2024, 30 January (Evening Shift)

Number of geometrical isomers possible for the given structure is/are . [figure]

Ques. 6JEE Main 2024, 30 January (Evening Shift)

2-chlorobutane + Cl2 C4H8Cl2 (isomers) Total number of optically active isomers shown by C4H8Cl2, obtained in the above reaction is .

Ques. 7JEE Main 2024, 29 January (Evening Shift)

Which one of the following will show geometrical isomerism?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 8JEE Main 2024, 27 January (Morning Shift)

Highest enol content will be shown by:

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 9JEE Main 2024, 27 January (Morning Shift)

3-Methylhex-2-ene on reaction with HBr in presence of peroxide forms an addition product (A). The number of possible stereoisomers for 'A' is .

Ques. 10JEE Main 2024, 27 January (Evening Shift)

Total number of compounds with Chiral carbon atoms from following is . [figure] CH3-CH2-CH(NO2)-COOH CH3-CH2-CHBr-CH2-CH3 CH3-CH(I)-CH2-NO2 CH3-CH2-CH(OH)-CH2OH CH3- I |CH-CH(I)-C2H5

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