Question

The products A and B obtained int he following reactions, respectively, are
3ROH+PCI3→3RCI+A
ROH+PCI5→RCI+HCI+B

• A. POCI3 and H3PO3
• B. POCI3 and H3PO4
• C. H3PO4 and POCI3
• D. H3PO3 and POCI3

Answer 1

Answer: (D)

H3PO3 and POCI3

Answer 2

The first reaction produces $H_3PO_3$ (phosphorous acid) as by-product with $RCl$. The second produces $POCl_3$ (phosphoryl chloride) with $RCl$ and $HCl$.