Among the following the weakest base is
  • A${C_6}{H_5}C{H_2}N{H_2}$
  • B${C_6}{H_5}C{H_2}NHC{H_3}$
  • C${O_2}N\,C{H_2}N{H_2}$
  • D$C{H_3}NH\,CHO$
AIIMS 2003, Medium
art

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