Major product '$P$' formed in the following reaction is:-

The action of water in the presence of sulphuric acid on the following alkenes gives:
$(i)$ $CH_3-CH=C(CH_3)_2$
(ii) $CH_3-CH=CH_2$

An alkene $(X)$ on ozonolysis followed by reduction gives the following products: $H-CHO$ ($2$ moles), $H-CO-CHO$, and $CH_3-CO-CO-CH_3$. The alkene $(X)$ is:

Which one of the following compounds gives acetone $(CH_3)_2C=O$ as one of the products of its ozonolysis?

Which of the following reagents convert propene to $1-$propanol?

Which of these does not follow Anti-Markownikoff's rule?