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Order of stability of given resonance structures

This type of question, asked 4 times: 24 Jan 2023, 27 Jan 2024, 9 Apr 2024, 21 Jan 2026 S1. All 5 questions below, oldest first.

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  1. Question 1

    24 Jan 2023

    33
    Increasing order of stability of the resonance structures is: (A) (B) (C) (D) Choose the correct answer from the options given below:

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  2. Question 2

    27 Jan 2024

    121
    The order of relative stability of the contributing structure is: Choose the correct answer from the options given below:

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  3. Question 3

    9 Apr 2024

    122
    The correct stability order of the following resonance structures of CH3−CH=CH−CHOCH_{3}- CH = CH - CHO is

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  4. Question 4

    9 Apr 2024

    37
    Relative stability of the contributing structures is:

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  5. Question 5

    21 Jan 2026 S1

    37
    From the following, the least stable structure is :

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