Name the reaction,heating of $1,2-$dibromoethane with zinc powder?

Draw the $cis$ and $trans$ structures of $hex-2-ene$. Which isomer will have a higher $b.p.$ and why?

When $2-$Methylbut$-2-$ene is treated with hydrogen chloride,the major product formed is

Identify the product obtained when alkenes are oxidised with $KMnO_4$ in dil. $H_2SO_4$.

What are the products obtained from the hydroboration-oxidation of propene and its hydration in the presence of dilute sulfuric acid,respectively?

$trans$-cyclohexane-$1,2$-diol can be obtained by the reaction of cyclohexene with