Explanation:
It is least stable because $\text{C}^\ominus$ is attached to three electron releasing CH3 groups.
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Statement $I :$ A mixture of chloroform and aniline can be separated by simple distillation.
Statement $II :$ When separating aniline from a mixture of aniline and water by steam distillation aniline boils below its boiling point. In the light of the above statements, choose the most appropriate answer from the options given below.
$3$-ethyny$l-2$-hydroxy-$4$-methylhex-$3$-en-$5$-ynoic acid?