MCQ
Which of the following pair cannot be distinguished by Tollen's reagent
- A$CH_3COCH_3, PhCHO$
- B$HCOOH, CH_3COCH_3$
- ✓$CH_3CHO, PhCH_2CHO$
- D$PhCOCH_3, HCHO$
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$(I)$ $-OAc$ $(II)$ $-OMe$
$(III)$ $-O-SO_2-Me$ $(IV)$ $-O-SO_2-CF_3$
The order of leaving power is :
Product is