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Rosenmund reduction: reagent, substrate or product

This type of question, asked 8 times: 3 May 2023 S1, 11 May 2024 S2, 12 May 2024 S1, 12 May 2024 S2, 18 Apr 2026 S1, 19 Apr 2026 S2, 20 Apr 2026 S1, 15 May 2026 S1. All 8 questions below, oldest first.

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  1. Question 1

    3 May 2023 S1

    74
    Identify the reagent 'R' used in the following reaction: Benzoyl chloride →R\xrightarrow{R} Benzaldehyde

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  2. Question 2

    11 May 2024 S2

    79
    Identify the reagent 'R' used in the following reaction. C6H5COCl→RC6H5CHO+HCl\text{C}_6\text{H}_5\text{COCl} \xrightarrow{R} \text{C}_6\text{H}_5\text{CHO} + \text{HCl}

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  3. Question 3

    12 May 2024 S1

    93
    Which of the following reactions is Rosenmund reduction?

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  4. Question 4

    12 May 2024 S2

    87
    Which of the following compounds is obtained by Rosenmund reduction of benzoyl chloride?

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  5. Question 5

    18 Apr 2026 S1

    39
    Identify the reagent 'R' used in the following reaction C6H5COCl→RC6H5CHO+HCl\mathrm{C_6H_5COCl \xrightarrow{R} C_6H_5CHO + HCl}

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  6. Question 6

    19 Apr 2026 S2

    43
    What is the product formed on Rosenmund reduction of benzoyl chloride ?

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  7. Question 7

    20 Apr 2026 S1

    43
    Which of the following reaction represents Rosenmund reduction ?

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  8. Question 8

    15 May 2026 S1

    43
    Which of the following compounds is used to prepare aliphatic aldehydes by Rosenmund reduction?

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