See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

2 2 Et O H /H O MeMgBr    C O Ph Ph Ph C OH Me Ph 2 4 Et O NH Cl PhMgBr   C O Ph Me Ph C OH Me Ph 2 2 Et O 2 H /H O Ph CH MgBr      C O Ph H Ph CH OH CH2 Ph 2 2 Et O H /H O 2PhMgBr    C O C H3 OEt C H3 C OH Ph Ph