MCQ
Identify product $B$ in above reaction sequence


- A

- ✓

- C

- D







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Which of the following statements is $/$ are Correct for $'Y'$

$(A)$ $n=3,1=0, m=0$
$(B)$ $n=4,1=0, m=0$
$(C)$ $n =3,1=1, m =0$
$(D)$ $n=3,1=2, m=1$