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Mass or percentage yield of a product made from a given mass of aniline

This type of question, asked 7 times: 27 Jan 2024, 4 Apr 2024, 5 Apr 2024, 6 Apr 2024, 8 Apr 2024, 22 Jan 2026 S2, 24 Jan 2026 S2. All 7 questions below, oldest first.

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  1. Question 1

    27 Jan 2024

    149
    9.3 g9.3\text{ }g of aniline is subjected to reaction with excess of acetic anhydride to prepare acetanilide. The mass of acetanilide produced if the reaction is 100%100\% completed is ____\_\_\_\_ ×10−1 g\times10^{- 1}\text{ }g. (Given molar mass in gmol−1 N:14,O:16,Cgmol^{- 1}\text{ }N:14,O:16,C : 12,H:1)12,H:1)

  2. Question 2

    4 Apr 2024

    144
    From 6.55 g6.55\text{ }g of aniline, the maximum amount of acetanilide that can be prepared will be _______ ×10−1 g\times10^{- 1}\text{ }g.

  3. Question 3

    5 Apr 2024

    60
    9.3 g9.3\text{ }g of pure aniline is treated with bromine water at room temperature to give a white precipitate of the product ' PP '. The mass of product ' PP ' obtained is 26.4 g26.4\text{ }g. The percentage yield is............ %\%.

  4. Question 4

    6 Apr 2024

    55
    9.3 g9.3\text{ }g of pure aniline upon diazotisation followed by coupling with phenol gives an orange dye. The mass of orange dye produced (assume 100% yield/ conversion) is _____ g. (nearest integer)

  5. Question 5

    8 Apr 2024

    57
    If 279 g279\text{ }g of aniline is reacted with one equivalent of benzenediazonium chloride, the maximum amount of aniline yellow formed will be ______ g. (nearest integer) (consider complete conversion)

  6. Question 6

    22 Jan 2026 S2

    49
    The mass of benzanilide obtained from the benzoylation reaction of 5.8 g of aniline, if yield of product is 82%82\%, is ____\_\_\_\_ g (nearest integer). (Given molar mass in gmol−1H:1,C:12, N:14g{mol}^{- 1}H:1,C:12,\text{ }N:14, O:16)

  7. Question 7

    24 Jan 2026 S2

    34
    A student has planned to prepare acetanilide from aniline using acetic anhydride. The student has started from 9.3 g of aniline. However, the student has managed to obtain 11 g of dry acetanilide. The % yield of this reaction is :-

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