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Answers
Answer:
Explanation:
Colour of pH paper Approx pH-Value Nature of substances
1. Green 1. 7.4 1. Weakly basic
2.Orange-yellow 2. 5.8 2. Weakly acidic
3.Red 3. 2.3 3. Strongly acidic
4.Orange-yellow 4. 3 4. Weakly acidic
5.Orange-yellow 5. 4-4.5 5. ,,
6.Orange-yellow 6. 4.5-5.5 6. ,,
7.Orange 7. 4-4.4 7. ,,
8.Greenish yellow 8. 6.5-7.5 8. ,,- Neutral
9. Violet 9. 1.4 9. Strongly basic
10. Dark red. 10. 0 10. Strongly acidic.....