MCQ
Insulin is a protein which plays the role of
- AAn antibody
- ✓A hormone
- CAn enzyme
- DA transport agent
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(image) $\xrightarrow{{B{r_3} + C{H_3} - COOH}}A\xrightarrow{{Alc.KOH}}B$ (Product with six membered ring) $\xrightarrow[{(2)\,{H_2}O}]{{(1)\,C{H_3} - MgBr}}C\xrightarrow{{{H^ \oplus } + \Delta }}D\xrightarrow{{HBr(1\,mole)}}E$
[At. nos. $Zn = 30, Sc = 21, $$Ti = 22, Cr = 24$]