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Krishna Mody
Asked: 2022-11-11T19:16:43+05:30 In:

A salt mixture contains anions `A^(-) & B^(-)` . To the sodium carbonate extract of the mixture & dil. HCl. Two drops of chlorine water and 2-3 ml of chloroform are added and the mixture shaken. A violet colour is produced. The addition of chlorine water is continued till the violet colour disappears and a reddish brown colour appears. The anions are
A. `I^(-) & Br`
B. `Br^(-) & I^(-)`
C. `I^(-) & Cl^(-)`
D. `Cl^(-) & I^(-)`

A salt mixture contains anions `A^(-) & B^(-)` . To the sodium carbonate extract of the mixture & dil. HCl. Two drops of chlorine water and 2-3 ml of chloroform are added and the mixture shaken. A violet colour is produced. The addition of chlorine water is continued till the violet colour disappears and a reddish brown colour appears. The anions are
A. `I^(-) & Br`
B. `Br^(-) & I^(-)`
C. `I^(-) & Cl^(-)`
D. `Cl^(-) & I^(-)`
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1 Answer

  1. Correct Answer – A
    The test is used to identify `Br^(-)` and `I^(-)` when present together.

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