Oxidation of cyclohexene in the presence of acidic potassium permanganate leads to:

The reaction of an alkene $X$ with bromine produces a compound $Y$,which has $22.22 \% \ C$,$3.71 \% \ H$ and $74.07 \% \ Br$. The ozonolysis of alkene $X$ gives only one product. The alkene $X$ is,
[Given,atomic mass of $C = 12$; $H = 1$; $Br = 80$ ]

Which of the following reagents cannot be used for the experimental reduction of a functional group?

Why is $CCl_{4}$ added in the bromination of an alkene?

In the reaction of hydrogen bromide with an alkene (in the absence of peroxides),the first step of the reaction is the ................. to the alkene.

What is $X$ in the given reaction?
$HOCH_2-CH_2OH + (COOH)_2 \xrightarrow{210^{\circ}C} X$
(major product)