Explain :
(a) Ethyl isobutyrate does not undergo Claisen condensation in the presence of `NaOEt`.
Acetyl chloride is hydrolysed rapidly by water, whereas benzoyl chloride is not.
( c) `beta-`Keto esters are stronger acids than alcohols and esters.

Explain : Ethyl isobutyrate does not undergo Claisen condensation in the presence of NaOEt .

(a) Give the Claisen ester condensation product of ethyl butanoate. (b) Why does the Claisen ester condensation of ethyl-2-methyl propanoate (I) not take place ? ( c) Why does Claisen condensation of (I) take place by the use of Ph_3 C^(Ө) Na^(oplus) as a base ?

Explain the following: (a) More metal fluorides are ionic in nature than metal chlorides. (b) Perchloric acid is a stronger acid than sulphuric acid. (c ) Fluorine does not undergo disproportionation reactions but other halogens do.

Explain the following: (a) More metal fluorides are ionic in nature than metal chlorides. (b) Perchloric acid is a stronger acid than sulphuric acid. (c ) Fluorine does not undergo disproportionation reactions but other halogens do.

An unknown aldehyde 'A' on reacting with alkali gives a beta hydroxy aldehyde, which losses water to form an unsaturated aldehyde, but-2-enal. Another aldehyde 'B' undergoes disproportionation reaction in the presence of conc alkali to form products 'C' and 'D'. 'C' is an aryl alcohol with formula C_7H_8O : Name the product, when 'B' reacts with zinc amalgam and hydrochloric acid.