MCQ
The above reaction completes with the mechanism


- ANucleophilic substitution -elimination mechanism
- BElectrophilic addition -elimination mechanism
- CElectrophilic substituion -elimination mechanism
- ✓Nucleophilic addition -elimination mechanism

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The structure of $C$ would be
$CHCl_3\xrightarrow[hv]{O_2}[A]\xrightarrow{EtOH}[B]\xrightarrow{2\ mole\ MeMgBr}$
$[C]\xrightarrow{CaOCl_2}[D]\xrightarrow{\Delta}CH_3-\underset{\underset{O}{||}}{C}-CH_3$
$Z$ is :
$1.\,Zn|Z{n^{2 + }}\,\left( {1\,M} \right)||C{u^{2 + }}\left( {1\,M} \right)|Cu$
$2.\,Zn|Z{n^{2 + }}\,\left( {0.1\,M} \right)||C{u^{2 + }}\left( {1\,M} \right)|Cu$
$3.\,Zn|Z{n^{2 + }}\,\left( {1\,M} \right)||C{u^{2 + }}\left( {0.1\,M} \right)|Cu$
are represented by $E_1,\,E_2,\,E_3$. Which of the following statement is true?