NEETChemistryAmines
Match List-I with List-II List-I List-II A Benzenesulphonyl chloride I Test for primary amines B Hoffmann bromamide reaction II Anti Saytzeff C Carbylamine reaction III Hinsberg reagent D Hoffmann orientation IV Known reaction of Isocyanates. Choose the correct answer from the options given below
Options
- AA - IV , B - III , C - II , D - I
- BA - IV , B - II , C - I , D - III
- CA - III , B - IV , C - I , D - II
- DA - IV , B - III , C - I , D - II
Correct answer
C. A - III , B - IV , C - I , D - II
Step-by-step solution
Benzen sulphonyl chloride (B) Hoffmann bromamide reaction → known reaction of isocynates R - CO - NH 2 + X 2 + 4 NaOH → R - NH 2 + 2 NaX + Na 2 CO 3 + 2 H 2 O Intermediate : R - N = C = O (isocyanate) (C) Carbylamine reaction → Test for primary amine R - NH 2 or Ar - NH 2 + CHCl 3 + 3 KOH → RNC (D) Hoffmann orientation → Anti saytzeff (Formation of less substituted alkene as major product)