MCQ
Transition state structure of the substrate formed during an enzymatic reation is:
- ATemporary but stable.
- BPermanent but unstable.
- ✓Temporary and unstable.
- DPermanent and stable.
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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: