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Question
In Lassaigne’s test for halogens, which statement about the silver halide precipitate is correct?
Options
AgCl is yellow and insoluble in NH₄OH
AgBr is white and completely soluble in NH₄OH
AgI is yellow and insoluble in NH₄OH
All AgX precipitates are colourless and soluble in NH₄OH
MCQ
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Solution
AgI is yellow and insoluble in NH₄OH
Explanation:
In the halogen test, AgCl is white and soluble, AgBr is pale yellow and sparingly soluble, while AgI is yellow and insoluble in ammonium hydroxide.
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Important methods for determination of elements qualitatively and quantitatively
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