MCQ
Among the following the weakest base is
- A${C_6}{H_5}C{H_2}N{H_2}$
- ✓${C_6}{H_5}C{H_2}NHC{H_3}$
- C${O_2}N\,C{H_2}N{H_2}$
- D$C{H_3}NH\,CHO$
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$A\xrightarrow{{{\text{Reduction}}}}B\xrightarrow{{HN{O_2}}}{C_2}{H_5}OH$

