Can anyone give a detailed solution of the 20th question?

I spent a lot of time on this question but I still don’t get the concept can anyone help?
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iTeachChem Helper
@Dexter
iTeachChem Helper
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flower
flower4d ago
damn dude these are some really good questions
YAWN
YAWNOP4d ago
Yea Ik they’re really hard
flower
flower4d ago
i have no idea POAC is my poison
Sephrina
Sephrina4d ago
which one? number to dalo
YAWN
YAWNOP4d ago
Dala na 20th
Sephrina
Sephrina4d ago
oh sorry gimme some ill try this

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