Question

Arrange the following four compounds in increasing order of acid strength Provide suitable explanation to substantiate your answer (1+4 points) он ОН ОН CH3OH CN CN

Answer 1

order Answer: Increasing | cizon < of acidic Strength < om : Concept and Explanation general concept for Predicting acidity of a compound HA HO TAO Conjugated) - Bose Norif ff Conjugate Base is more stable implies HA is more acidic in Nature . in your case Conjugare Bosses are general acid) CH₂OO, - CN / Just Delocalise the negative Charge is most stable on charge, this Negative a due to -R8 - I effect of CN group. On the Beris of tR 8 II ( Resonance & inductive effect) you can predict the acidity. Na NOTE: -R8 -1 groupe enhance acidity where as +R 8 ti group mitigate acidity.

& +I CH₂OH, only ar 0 IN CHgo Cose CH₂ will generate the effect. " Сове , Phеrvіt уточP дене так - o'y osc, , -I StR effect By Cyano group. Yn B IN Code, 18 =R effect By Cynowo group. - cose . 1 Remember. Resonance effect always have Dominance over inductive effect.