Question 15 of 25 Which reaction would be predicted by the activity series list?
O A. A metal replaces a metallic ion below it on the list.
OB. A metal ion reacts with another ion to form a precipitate.
O C. A metal replaces a metallic ion above it on the list.
OD. A metal reacts with oxygen in a combustion reaction.

The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н, о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.