MCQ
Reagent $(A)$ and $(B)$ in above reaction are


- A$A = RCO_3 H , B = H_2O_2$
- B$A = RCO_3H , B = HIO_4$
- ✓$A = RCO_3 H, B = O_3$
- D$A = O_3 , B = RCO_3H$

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