MCQ
Which of the following triatomic molecules does not exist ?
- A$CO_2$
- B$CS_2$
- ✓$CSe_2$
- D$CTe_2$
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$\underset{A}{\mathop{PhF}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\underset{B}{\mathop{PhCl}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\underset{C}{\mathop{PhBr}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\underset{D}{\mathop{PhI}}\,$
undergoes intramolecular aldol condensation, the major product formed is :