Propene,$CH_3-CH=CH_2$ can be converted to $1-propanol$ by oxidation. Which set of reagents among the following is ideal to effect the conversion?

What is the product obtained when the ozonolysis of $CH_2 = CH_2$ is followed by reduction with $LiAlH_4$?

Given below are two statements $:$
Statement $I :$ Ozonolysis followed by treatment with $Zn, H_2O$ of $cis-2-butene$ gives ethanal.
Statement $II :$ The product obtained by ozonolysis followed by treatment with $Zn, H_2O$ of $3,6-dimethyloct-4-ene$ has no chiral carbon atom.
In the light of the above statements,choose the correct answer from the options given below.

An alkene $X$ on ozonolysis gives a mixture of $Propan-2-one$ and $methanal$. What is $X$?

When $2-$butyne is treated with $H_2/$ Lindlar's catalyst,compound $X$ is produced as the major product and when treated with $Na/liq. NH_3$ it produces $Y$ as the major product. Which of the following statements is correct?

$CH_2=CH-CH_2-CH_3 \xrightarrow{H^{+}/\Delta} \text{Major product}$. Identify the major product in the above reaction.