1.

Glyoxal is                                            [BVP 2003]

A.                 \[C{{H}_{2}}O-C{{H}_{2}}O\]      
B.                 \[\underset{\underset{C{{H}_{2}}OH}{\mathop{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}\,}{\mathop{C{{H}_{2}}OH}}\,\]
C.                 \[\underset{\underset{CHO}{\mathop{|\,\,\,\,\,\,\,\,}}\,}{\mathop{CHO}}\,\] 
D.                 \[\underset{\underset{CHO\,\,\,\,\,}{\mathop{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}\,}{\mathop{C{{H}_{2}}OH}}\,\]
Answer» D.                 \[\underset{\underset{CHO\,\,\,\,\,}{\mathop{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}\,}{\mathop{C{{H}_{2}}OH}}\,\]


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