MCQ
$IUPAC$ name of (figure) is


- A$6 -$ Oxo $-4 -$ formyl cyclohexane carboxylic acid
- ✓$4 -$ Formyl $-2 -$ Oxo cyclohexane carboxylic acid
- C$4 -$ Formyl $-2 -$ Oxo cyclohexanoic acid
- D$1 -$ Carboxy $-4 -$ fromyl $-2 -$ Oxo cyclohexane


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The correct statement for the ionic radius of $\mathrm{N}^{3-}$ from the following is :