JEE Main201815 Apr 2018Morning ShiftChemistryGeneral Organic ChemistryActual
The correct match between items of List-I and List-II is :
Options
- A(A)-(r),(B)-(s), (C)-(p),(D)-(q)
- B(A)-(p),(B)-(s), (C)-(r),(D)-(q)
- C(A)-(r), (B)-(p), (C)-(q), (D)-(s)
- D(A)-(r),(B)-(p), (C)-(s),(D)-(q)
Correct answer
C. (A)-(r), (B)-(p), (C)-(q), (D)-(s)
Step-by-step solution
(a) Charcoal treatment removes coloured impurity through adsorption. (b) Steam distillation separates the mixture of o -nitrophenol and p -nitrophenol. The o -nitrophenol is steam volatile (due to intramolecular hydrogen bonding), and the para isomer is not volatile. (c) Fractional distillation separates crude naphtha. Naphtha is a flammable liquid hydrocarbon mixture. (d) Distillation under reduced pressure separates mixture of glycerol and sugars. Vacuum distillation lowers the boiling point and prevents decompos