$O_3$ reacts with $CH_2 = CH_2$ to form an ozonide. On hydrolysis,it forms:

An optically active alkene having molecular formula $C_8H_{16}$ gives acetone as one of the products on ozonolysis. The structure of the alkene is:

The number of $sp^3$ hybridized carbon atoms in cyclohexene is

Which of the following compounds was the starting material for the oxidation shown below?
$Compound \xrightarrow{KMnO_4 / H^{\oplus}} \text{Product}$

Kolbe electrolysis of potassium succinate gives $CO_2$ and

Give the order of stability for different alkenes.