(a) Use the following reactions to arrange the elements A, B, C, and D in order of their decreasing ability as reducing agents:

Video transcript

Hello. Everyone in this video, we're given these for reactions and we're trying to rank A. B. C. And D. By increasing order of their reducing ability. So an element higher in activity series will displace an element below it. So for the first reaction here, we can see that B goes before A. The second one we see that see goes before D. The third one we can see that A. Goes before scene. And lastly we have be that goes before see so that an increasing order in increasing order we have deep then see and A. And then B. B. Being last E. Being first. So at these were choices. Then here the one that matches the word that we have derived will be statement D. So again we have D. C. A. Then B. All right. Thank you all so much for watching.