A chromatography column, packed with silica gel as stationary phase, was used to separate a mixture of…

A chromatography column, packed with silica gel as stationary phase, was used to separate a mixture of compounds consisting of A benzanilide B aniline and C acetophenone. When the column is eluted with a mixture of solvents, hexane:ethyl acetate 20:80 , the sequence of obtained compounds is:
  1. B,C and A
  2. B,A and C
  3. C,A and B
  4. A,B and C

Solution

A dipole moment arises in any system in which there is a separation of charge. They can, therefore, arise in ionic bonds as well as in covalent bonds. Dipole moments occur due to the difference in electronegativity between two chemically bonded atoms.

A bond dipole moment is a measure of the polarity of a chemical bond between two atoms in a molecule. It involves the concept of electric dipole moment, which is a measure of the separation of negative and positive charges in a system.



Hence the sequence of obtained compounds is (C), (A) and (B)

Asked in: JEE Main 2020 (07 Jan Shift 2)

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