MCQ
The correct $IUPAC$ name of the following compound is .... .


- A$4-$methyl$-2-$nitro$-5-$oxohept$-3-$enal
- B$4-$methyl$-5-$oxo$-2-$nitrohept$-3-$enal
- ✓$4-$methyl$-6-$nitro$-3-$oxohept$-4-$enal
- D$6-$formyl$-4-$methyl$-2-$nitrohex$-3-$enal


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$(i)\,Cl\xrightarrow{E.A.}Cl^-\,\,\,\,\,\,(ii)\,C{{l}^{-}}\xrightarrow{I.E.}Cl\,\,\,\,(iii)\,\,Cl\xrightarrow{I.E.}C{{l}^{+}}\,\,\,(iv)\,\,C{{l}^{+}}\xrightarrow{I.E.}Cl^{2+}$