Observe the following reaction and identify the correct statements about X
\[
C_4H_8 \xrightarrow[(ii)\ Zn,H_2O]{(i)\ O_3} Ethanal
\]
I. It does not exhibit cis/trans isomerism
II. It adds water in presence of dilute $H_2SO_4$ to give secondary alcohol
III. It is obtained as major product in the reaction of secondary butyl chloride with alcoholic KOH
Show Hint
Saytzeff rule:
The more substituted alkene is generally the major product.