Could you please explain how to get the answers:

PQ11: C : Why could it not be SOCl2?

PQ13: C : How did we know it would go E2 and not SN2?

=O -O PQ-11. Which reagents can be used in 1)??? 2) EtOH, cold SN2 can happe the first step of this synthesis? 12 requires YoH OEt ofz (A) TfCl or SOCl2 or HC1/ZnCl2 (C) TfCl or HCl/ZnCl2 (B) TfCl or SOCI2 (D) SOCH or HCI/ZnCl2 PQ-13. What is the major product of this reaction? H 1) TSCI 2) NaOEt how did We hrowan Me H . OET Me (B) H O H "Me OEt ad u 19 (C) (D) Me 1