Ethylene is prepared by the dehydration of

The product $(P)$ is:

Write $IUPAC$ names of the products obtained by the ozonolysis of the following compounds:
$(i)$ $Pent-2-ene$
$(ii)$ $3,4-Dimethylhept-3-ene$
$(iii)$ $2-Ethylbut-1-ene$
$(iv)$ $1-Phenylbut-1-ene$

One mole of each of the following alkenes is catalytically hydrogenated. The quantity of heat evolved will be the lowest in the case of

The alkene $C_6H_{10}$ producing $OHC-(CH_2)_4-CHO$ on ozonolysis is

Which reagent converts propene into $1$-propanol?