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Percentage of halogen from the mass of silver halide (Carius method)

This type of question, asked 9 times: 2021 Paper 20, 27 Jun 2022, 28 Jun 2022, 27 Jul 2022, 13 Apr 2023, 22 Jan 2025, 24 Jan 2025, 22 Jan 2026 S1, 23 Jan 2026 S2. All 9 questions below, oldest first.

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  1. Question 1

    2021 Paper 20

    51
    In Carius method for estimation of halogens, 0.2 g0.2\text{ }g of an organic compound gave 0.188 g0.188\text{ }g of AgBrAgBr. The percentage of bromine in the compound is . (Nearest integer) [Atomic mass: Ag=108,Br=80Ag = 108,Br = 80 ]

  2. Question 2

    27 Jun 2022

    150
    0.25 g0.25\text{ }g of an organic compound containing chlorine gave 0.40 g0.40\text{ }g of silver chloride in Carius estimation. The percentage of chlorine present in the compound is [in nearest integer] (Given: Molar mass of AgAg is 108 g mol−1108\text{ }g{\text{ }mol}^{- 1} and that of ClCl is 35.5 g mol−135.5\text{ }g{\text{ }mol}^{- 1} )

  3. Question 3

    28 Jun 2022

    60
    In the estimation of bromine, 0.5 g0.5\text{ }g of an organic compound gave 0.40 g0.40\text{ }g of silver bromide. The percentage of bromine in the given compound is %\% (nearest integer) (Relative atomic masses of AgAg and BrBr are 108u108u and 80u80u, respectively).

  4. Question 4

    27 Jul 2022

    49
    In Carius method of estimation of halogen. 0.45 g0.45\text{ }g of an organic compound gave 0.36 g0.36\text{ }g of AgBrAgBr. Find out the percentage of bromine in the compound. (Molar masses: AgBr=188 g mol−1:Br=80 g mol−1AgBr = 188\text{ }g{\text{ }mol}^{- 1}:Br = 80\text{ }g{\text{ }mol}^{- 1} )

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  5. Question 5

    13 Apr 2023

    141
     0.400 g\ 0.400\text{ }g of an organic compound (X) gave 0.376 g0.376\text{ }g of AgBrAgBr in Carius method for estimation of bromine. % of bromine in the compound (X) is____ (Given: Molar mass AgBr=188 g mol−1Br=80 gAgBr = 188\text{ }g{\text{ }mol}^{- 1}Br = 80\text{ }g mol−1mol^{- 1} )

  6. Question 6

    22 Jan 2025

    47
    In Carius method for estimation of halogens, 180 mg of an organic compound produced 143.5 mg of AgCl . The percentage composition of chlorine in the compound is ____\_\_\_\_ %\%. [Given : molar mass in gmol−1gmol^{- 1} of Ag:108Ag:108, Cl=35.5]Cl = 35.5\rbrack

  7. Question 7

    24 Jan 2025

    125
    In Carius method of estimation of halogen, 0.25 g of an organic compound gave 0.15 g of silver bromide (AgBr)(AgBr). The percentage of Bromine in the organic compound is ______\_\_\_\_\_\_ × 10−1%\times \ 10^{- 1}\% (Nearest integer). (Given : Molar mass of Ag is 108 and Br is 80 g mol−180\text{ }g{\text{ }mol}^{- 1} )

  8. Question 8

    22 Jan 2026 S1

    49
    Sodium fusion extract of an organic compound (Y) with CHCl3{CHCl}_{3} and chlorine water gives violet color to the CHCl3{CHCl}_{3} layer. 0.15 g of (Y)(Y) gave 0.12 g of the silver halide precipitate in Carius method. Percentage of halogen in the compound (Y)(Y) is ____\_\_\_\_ . (Nearest integer). (Given : molar mass gmol−1C:12,H:1,Cl:35.5g{mol}^{- 1}C:12,H:1,Cl:35.5, Br: 80, I : 127)

  9. Question 9

    23 Jan 2026 S2

    40
    In Carius method 0.2425 g of an organic compounds gave 0.5253 g silver chloride. The percentage of chlorine in the organic compound is

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