MCQ
The correct order for $E_2$ reaction with alc. $KOH$ will be


- ✓$i > ii > iii$
- B$iii > ii > i$
- C$ii > i > iii$
- D$iii > i > ii$

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$(I)\, IUPAC$ name of compound is pentaamminenitrito $-N-$ chrornium $(III)$ tetrachlorozincate $(II)$
$(II)$ It shows geometrical isomerism
$(III)$ It shows linkage isomerism
$(IV)$ It shows coordination isomerism

$C{H_3} - CH = C{H_2} + HBr\xrightarrow{{{{({C_6}{H_5}CO)}_2}{O_2}}}$