# Comment on the following observations. (a) The $^{13} \mathrm{C}\left\{^{1} \mathrm{H}\right\}$ NMR spectrum of $\mathrm{CF}_{3} \mathrm{CO}_{2} \mathrm{H}$ shows two quartets with

###### Question:

Comment on the following observations. (a) The $^{13} \mathrm{C}\left\{^{1} \mathrm{H}\right\}$ NMR spectrum of $\mathrm{CF}_{3} \mathrm{CO}_{2} \mathrm{H}$ shows two quartets with $J 284$ and $44 \mathrm{Hz}$. Hint: look at Table $14.1 .$ (b) $\mathrm{NH}_{2}^{-}$ is a poor leaving group, and yet, in the presence of $\mathrm{H}^{+},$ amides are hydrolysed to carboxylic acids.

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