COMEDK20269 May 2026Evening ShiftChemistryGeneral Organic ChemistryActual
Which of the following is an INCORRECT statement?
Options
- ACH ₃ OH and CH ₃ COCH ₃ are separated by fractional distillation
- BIn sodium nitroprusside test for Sulphur, the violet colour is due to formation of complex Na ₄[ Fe(CN) ₅ NOS
- CAlCl ₃, NH ₃, SO ₃, NO ₂^+, H ₂ O are electrophiles
- DCH ₃ COO ^-, CN ^-, CH ₃ OH , CH ₃- O - CH ₃, ( CH ₃)₃ N are nucleophiles
Correct answer
C. AlCl ₃, NH ₃, SO ₃, NO ₂^+, H ₂ O are electrophiles
Step-by-step solution
Electrophiles are electron-deficient species that can accept an electron pair. While AlCl ₃ , SO ₃ , and NO ₂^+ are electrophiles, NH ₃ and H ₂ O possess lone pairs of electrons on their central atoms (nitrogen and oxygen, respectively). This makes them electron-rich species, so they act as nucleophiles, not electrophiles. Option (A) is a correct statement because fractional distillation is used to separate miscible liquids with a boiling point difference of less than 25 K . Option (B) is a correct statement. In th