A. Picric acid (2,4,6-trinitrophenol) is slightly soluble in water but is readily soluble (with stirring or shaking) in both 0.6 M NaHCO3 and 2.5 M NaOH. Conversely, 2-ethylphenol is insoluble in both water and 0.6 M NaHCO3 but soluble in 2.5 M NaOH. Explain. Picric acid 2-ethylphenol OH & B. Both p-ethylaniline and triethylamine are only slightly soluble in water but both are readily soluble with stirring in 1.5 M HCI. In contrast, triphenylamine shows virtually no solubility in either water or 1.5 M HCI. Explain. C. A compound of bp 204°C'is water insoluble and is insoluble in 2.5 M NaOH and 1.5 M HCl as well. The compound does dissolve in concentrated H₂SO4. The original compound produces both a positive iodoform test and a positive 2,4-dinitrophenylhydrazinę test. What is a possible structure of this compound?

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Chapter1: Chemical Foundations
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Answered A,B and C 

A. Picric acid (2,4,6-trinitrophenol) is slightly soluble in water but is readily soluble (with stirring
or shaking) in both 0.6 M NaHCO3 and 2.5 M NaOH. Conversely, 2-ethylphenol is insoluble in
both water and 0.6 M NaHCO3 but soluble in 2.5 M NaOH. Explain.
Picric acid
2-ethylphenol
B. Both p-ethylaniline and triethylamine are only slightly soluble in water but both are readily
soluble with stirring in 1.5 M HCl. In contrast, triphenylamine shows virtually no solubility in
either water or 1.5 M HCI. Explain.
C. A compound of bp 204°C'is water insoluble and is insoluble in 2.5 M NaOH and 1.5 M HCl as
well. The compound does dissolve in concentrated H₂SO4. The original compound produces
both a positive iodoform test and a positive 2,4-dinitrophenylhydrazinę test. What is a
possible structure of this compound?
Transcribed Image Text:A. Picric acid (2,4,6-trinitrophenol) is slightly soluble in water but is readily soluble (with stirring or shaking) in both 0.6 M NaHCO3 and 2.5 M NaOH. Conversely, 2-ethylphenol is insoluble in both water and 0.6 M NaHCO3 but soluble in 2.5 M NaOH. Explain. Picric acid 2-ethylphenol B. Both p-ethylaniline and triethylamine are only slightly soluble in water but both are readily soluble with stirring in 1.5 M HCl. In contrast, triphenylamine shows virtually no solubility in either water or 1.5 M HCI. Explain. C. A compound of bp 204°C'is water insoluble and is insoluble in 2.5 M NaOH and 1.5 M HCl as well. The compound does dissolve in concentrated H₂SO4. The original compound produces both a positive iodoform test and a positive 2,4-dinitrophenylhydrazinę test. What is a possible structure of this compound?
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