Ozonolysis of an alkene produces only one dicarbonyl compound. The structure of the alkene is:

Propylene on hydrolysis with sulphuric acid forms

The reaction of $2,3$-dichlorobutane (as shown in the image) with $Zn$ dust and heat produces an alkene. Which of the following statements is correct about the product formed?

Which of the following is most reactive for electrophilic addition reaction?

Alkenes react with water in the presence of acid as a catalyst to form alcohols: $CH_3-CH=CH_2 + H_2O \xrightarrow{H^{+}} CH_3-CH(OH)-CH_3$. The reaction takes place in accordance with:

Compound $X$ on heating with $Zn$ dust gives compound $Y$,which on treatment with $O_3$ followed by reaction with $Zn$ dust and $H_2O$ gives propionaldehyde. The structure of $X$ is: