JEE Main · 2024 · Shift-IeasyGOC-009

Structure of 4-Methylpent-2-enal is:

General Organic Chemistry (GOC) · Class 11 · JEE Main Previous Year Question

Question

Structure of 4-Methylpent-2-enal is:

image

Options
  1. a

    Structure A

  2. b

    Structure B

  3. c

    Structure C

  4. d

    Structure D

Correct Answerd

Structure D

Detailed Solution

IUPAC Name Analysis: 4-Methylpent-2-enal

Breaking down the name:

  • Pent: 5-carbon main chain
  • 2-en: Double bond starting at C2
  • al: Aldehyde group (at C1)
  • 4-Methyl: Methyl substituent at C4

image Verification:

  • 5 carbons in main chain ✓
  • Aldehyde at C1 ✓
  • Double bond at C2-C3 ✓
  • Methyl at C4 ✓

Answer: (d) \ce(CH3)2CHCH=CHCHO\boxed{\text{Answer: (d) } \ce{(CH3)2CH-CH=CH-CHO}}

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