C P Prashanth KV Ganeshkhind Pune DISTINCTIONS BETWEEN SOME PAIRS OF ORGANIC COMPOUNDS (CHEMICAL TEST) Prepared by C P Prashanth KV Ganeshkhind Pune

C2H5Br + KOH (aq) → C2H5OH + KCl KCl + AgNO3 → AgBr + KNO3 Yellow ppt

CH3—CH(Cl)—CH3 + aqKOH → CH3—CH(OH)—CH3 + NaOI → CHI3 Isopropyl chloride i CH3CH2CH2C1 + aq KOH → CH3CH2CH2OH + NaOI →Does not give iodoform test.

CH3CH2OH +I2/NaOH →CH3-CHO 3C6H5OH + FeCl3 → (C6H50)3 Fe + 3HC1 C6H5N2Cl + → C6H5-N=N-

C6H5N2Cl + → C6H5-N=N- (iii) → + Br2 3C6H5OH + FeCl3 → (C6H50)3 Fe + 3HC1 C6H5N2Cl + → C6H5-N=N- (iii) → + Br2

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

CH3—CH(CH3)—OH + 4I2 + 6NaOH → CHI3 + CH3COONa + 5NaI + 5H20

CH3CH(OH)CH2CH3 + I2 + NaOH → CHI3 CH3CH2CH2CH2OH + I2 + NaOH → No yellow ppt.

3C6H5OH + FeCl3 → (C6H50)3 Fe + 3HC1 Violet

Primary amine can be tested by carbylamine test

Primary amine can be tested by carbylamine test

C6H5-NH2 + + NaOH → C6H5-

→ C6H5SO2N(CH2-CH3)2

Thanks C P Prashanth