Question

Rank the acids in increasing acidity.

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IN 0 H-IN

a b c d e

I do not know the answer.

My guess is e > c > a > d > b

reason: since this is positively charged, I thought that stabilizing the positive charge will lead to a stronger acid. I did not think about the conjugate bases. So, since lower electronegativity atom will stabilize the positive charge more, c and e would be the most acidic since N is less electronegative than O. Between C and E, E has the inductive effect which will stabilize the positive charge by the electron-rich group of F, so E is the most stable.

between A, B, and D, A is the most acidic because it has the sp2 nearer to O atom. (sp2 stabilizes positive charge than sp)

hence it is E > C > A > D > B...

Are my answer and reasonings correct?

Thank you

Answer 1

Ans : C > B > E > B > A > D.

Reason : electron donating groups or increasing the acidity will increase.

here the CH3 group is heighly +inductive effect this will donate the possitive electronic specious for stabilisation.