MCQ
The $IUPAC$ name for the following compound is:


- A$2,5-$ dimethyl$- 6 -$carboxy$-$hex$- 3 -$enal
- B$6-$formyl$- 2$$-$methyl$-$hex$-3-$enoic acid
- C$2, 5-$dimethyl$-5-$carboxy-hex$-3-$enal
- ✓$2,5 -$dimethyl$-6-$oxo$-$hex$-3-$enoic acid


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| List-$I$ (Molecule) | List-$II$(Shape) |
| $A$ $\mathrm{NH}_3$ | $I$ Square pyramid |
| $B$ $\mathrm{BrF}_5$ | $II$ Tetrahedral |
| $C$ $\mathrm{PCl}_5$ | $III$ Trigonal pyramidal |
| $D$ $\mathrm{CH}_4$ | $IV$ Trigonal bipyramidal |
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