1.

In the reduction of nitrobenzene, which of the following is the intermediate                                      [CPMT 1999]

A.                 \[{{C}_{6}}{{H}_{5}}N=O\]
B.                 \[{{C}_{6}}{{H}_{5}}NH-NH-{{C}_{6}}{{H}_{5}}\]
C.                 \[{{C}_{6}}{{H}_{5}}-N=N-{{C}_{6}}{{H}_{5}}\]
D.                 \[{{C}_{6}}{{H}_{5}}N=\overset{O}{\mathop{\overset{\uparrow }{\mathop{N}}\,}}\,-{{C}_{6}}{{H}_{5}}\]
Answer» B.                 \[{{C}_{6}}{{H}_{5}}NH-NH-{{C}_{6}}{{H}_{5}}\]


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