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Rank the following e- The relative acidity of each of the following compounds OH

ID: 637239 • Letter: R

Question

Rank the following

e- The relative acidity of each of the following compounds OH ?? OH a. i> ii> iii f- The relative stabilities of each of the following radicals b, i > iii > ii c. ii > i > iii d, ii > iii > ie. iii > i > ii f.iii i g- The relative nucleophilicity in polar, protic solvents of the followingg H2O ?? HS h- The leaving group ability for the indicated group (LG) ?? b, i > iii > ii c. ii > i > iii d, ii > iii > ie.iii > i > ii f.iii > ii > i i The relative stability of each of the following ?? ?? b? i > iii > ii c. ??» i > iii d.ii > iii > ie.iii > i > iif. iii > ii > i

Explanation / Answer

e) answer : b

Orthochlorophenol is most acidic. Ortho fluorophenol loses its acidity as it forms hydrogen bonds in solution due to which H+ is not freely liberated. Phenol has least acidity because the other two have an electronic withdrawing group but phenol doesn't.

f) answer : c

The second is an allyl free radical which is more stable because of conjugation. The first tertiary free radical is more stable than the third secondary free radical.

g) answer :f

Nucleophilicity increases as we go down the group of the attacking atom. The nucleophilicity of water is the least as it is a neutral atom.

h) answer : a

Br is a better leaving group than OH because it is a better nucleophile. NH3 is a poor leaving group because it is a strong base and attracts the bonded electrons more.