rank the following acids from least acidic to most acidic Question List (5 images) (Drag and…
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Question “rank the following acids from least acidic to most acidic Question List (5 images) (Drag and…”
Answer
Bronsted-Lowry’s acid base theory is first applied. An acid is a proton donor, while a base a proton acceptor. A proton can be donated to form an acid, while a base can be gained by donating a proton. We make the conjugate acid as the following because the structures in the question are acidic.
The stability of the conjugate base determines the acidity of an acid.
The four structures are identical, except for the group at the marked position in figure.
The inductive effect can be used to compare the stability of the conjugate bases. Higher -I effects mean higher stability and acidity. The trend for -I effects is F>Cl>Br. This trend is based on electronegativity of F Cl and Br. Higher electronegativity means higher -I effects. The last structure has no -I, but a +I effect by Ch3, so it is the least acidic in nature.
The acidic trend can be seen below.
Conclusion
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