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Order of bond lengths of given carbon bonds

This type of question, asked 3 times: 21 Jan 2026 S2, 4 Apr 2026 S2, 6 Apr 2026 S2. All 3 questions below, oldest first.

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  1. Question 1

    21 Jan 2026 S2

    39
    The correct increasing order of C−H(A)C - H(A), C−O(B),C=O(C)C - O(B),C = O(C) and C≡N(D)C \equiv N(D) bonds in terms of covalent bond length is:

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  2. Question 2

    4 Apr 2026 S2

    36
    Consider the following molecules/species: (x) (y) (z) The correct order of carbon - oxygen double bond length is:

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  3. Question 3

    6 Apr 2026 S2

    38
    Shown below is the structure of methyl acetate with three different α,β\alpha,\beta and γ\gamma carbon-oxygen bonds. The correct order of bond length of these bonds is :

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