Fischer's Esterification Process

Q.

Which of the following statement is true regarding esterification of a carboxylic with an alcohol ?

(i) It is carried out in presence of a strong acid which acts as a catalyst.

(ii) The strong acid makes the carbonyl carbon more electrophilic, and hence causes the alcohol, a strong nucleophile to attack on the carbonyl carbon.

(iii) The strong acid makes the carbonyl group more electrophilic which is thus attacked easily by an alcohol. a weak nucleophile.

(iv) Esterification can be done even in absence of a strong, acid.

1. (i) and (ii)

2. (i) and (iii)

3. (i)

4. iv

Q. Which reagent will bring about the conversion of carboxylic acids into esters

1. $C_2{H}_{5}OH$
2. Dry $HCl+C_2{H}_{5}OH$
3. $LiAl{H}_4$
4. $Al\left(O{C}_2{H}_5{)}_3\right)$

Q. In reduction of carboxylic acids $LiAl{H}_4$ acts as $H^{-}$ donar.

1. False
2. True