What is the product formed when $CH_3-CH=CH_2$ is treated with $B_2H_6$ followed by the action of $H_2O_2$?

One mole of $2-$methylbuta$-1, 3-$diene on ozonolysis gives:

What is produced when chlorine is passed through propene at $400\,^oC$?

An alkene $A$ (molecular formula $C_{5}H_{10}$) on ozonolysis gives a mixture of two compounds $B$ and $C$. Compound $B$ gives a positive Fehling's test and also forms iodoform on treatment with $I_{2}$ and $NaOH$. Compound $C$ does not give Fehling's test but forms iodoform. Identify the compounds $A, B$ and $C$. Write the reaction for ozonolysis and the formation of iodoform from $B$ and $C$.

Amongst the following,the major product of the given chemical reaction is $.....$ .

The organic compound $5-$allylcyclohex$-3-$ene$-1-$ol is reacted with cold,dilute,aqueous solution of $KMnO_4$. The total number of hydroxyl group$(s)$ $(-OH)$ present in the product is