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Cooked dal shaken with the test solution turns violet. The dal contains:

AMinerals
BProtein
CRoughage
DVitamins
Answer & Solution
Correct answer: B. Protein
1. A violet colour in the test tube marks one nutrient. 2. That nutrient is protein. 3. So the dal contains protein. _Source: syllabus Science Class VI, Chapter 2, Components of Food._
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