MCQ
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- ✓Phenyl isocyanide
- BBenzyl amine
- CBenzyl chloride
- DNone of these

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where $pK_1 , pK_2, pK_3$ are first ionization constants. Incorrect order is

Statement $I :$ Ethyl pent$-4-$yn$-$oate on reaction with $\mathrm{CH}_{3} \mathrm{MgBr}$ gives a $3^{\circ}$-alcohol.
Statement $II :$ In this reaction one mole of ethyl pent$-4-$yn$-$oate utilizes two moles of $\mathrm{CH}_{3} \mathrm{MgBr}$.
In the light of the above statements, choose the most appropriate answer from the options given below:
