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

What is a likely product of the reaction shown?

The major products obtained during ozonolysis of $2,3-$dimethyl$-1-$butene and subsequent reduction with $Zn$ and $H_2O$ are

Reaction of one molecule of $HBr$ with one molecule of $1,3-$butadiene at $40\,^{\circ}C$ gives predominantly

What is the product formed by the reaction of propene with $Br_2$ in $CCl_4$?

An unknown alkene $(A)$ reacts with $3 \ mole$ of $H_2$ gas in the presence of a platinum catalyst to form $1$-isopropyl-$4$-methylcyclohexane. When the unknown alkene $(A)$ is ozonized and reduced,the following products are obtained:
$HCHO$,$OHC-CH_2-CO-CO-CH_3$,and $CH_3-CO-CH_2-CHO$
What is the structure of alkene $(A)$?