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Prepared by
C P PrashanthKV Ganeshkhind Pune
DISTINCTIONS BETWEEN SOME PAIRS OF ORGANIC COMPOUNDS (CHEMICAL TEST)
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C2H5Br + KOH (aq) → C2H5OH + KCl
KCl + AgNO3 → AgBr + KNO3
Yellow ppt
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CH3—CH(Cl)—CH3 + aqKOH → CH3—CH(OH)—CH3 + NaOI → CHI3
Isopropyl chloride i
CH3CH2CH2C1 + aq KOH → CH3CH2CH2OH + NaOI →Does not give
iodoform test.
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CH3CH2OH +I2/NaOH →CH3-CHO
C6H5N2Cl + → C6H5-N=N-
3C6H5OH + FeCl3 → (C6H50)3 Fe + 3HC1
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(iii)
3C6H5OH + FeCl3 → (C6H50)3 Fe + 3HC1
C6H5N2Cl + → C6H5-N=N-
+ Br2 →
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• 1-Propanol (primary alcohol)does not produce turbidity at room temperature with Lucas reagent.
• CH3CH2CH2OH + anhyd ZnCl2 + HCl → No turbidity at room
• 2-Methyl-2-propanol(tertiary alcohol) reacts with Lucas reagent (anhyd ZnCl2 + HCl) giving turbidity immediately.
• (CH3)3C-OH + anhyd ZnCl2 + HCl → (CH3)3C-Cl
• Turbidity immediately
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CH3—CH(CH3)—OH + 4I2 + 6NaOH → CHI3 + CH3COONa + 5NaI + 5H20
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CH3CH(OH)CH2CH3 + I2 + NaOH → CHI3
CH3CH2CH2CH2OH + I2 + NaOH → No yellow ppt.
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3C6H5OH + FeCl3 → (C6H50)3 Fe + 3HC1Violet
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Primary amine can be tested by carbylamine test
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Primary amine can be tested by carbylamine test
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+ NaOH →C6H5-NH2 + C6H5-
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→ C6H5SO2N(CH2-CH3)2
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• Thanks
• C P Prashanth