See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

  3 PBr 2 2 Pyridine RCH OH R CH Br B A   3 o NaOCl CH COOH 0 C 2 Mg Et O  RCHO D  2 RCH MgBr C    2 RCHO RCH MgBr D C   3 H O  R C OMgBr H CH2R R CH OH CH2R   o 2 alcohol  F  E