Final answer:
When compound A is treated with (CH₃)₂CuLi followed by H₂O, the product formed is compound B. When compound A is treated with HCCl₃ followed by H₂O, the product formed is compound C.
Step-by-step explanation:
When compound A is treated with (CH₃)₂CuLi followed by H₂O, the product formed is compound B. When compound A is treated with HCCl₃ followed by H₂O, the product formed is compound C.