With oxalic acid,glycerol at $260\,^\circ C$ gives

The total number of alkenes possible by dehydrobromination of $3$-bromo-$3$-cyclopentylhexane using alcoholic $KOH$ is

The metal used for the de-bromination reaction of $1, 2$-dibromoethane is:

The reaction conditions used for converting $1, 2$-dibromoethane to ethylene are:

Ozonolysis of one mole of a symmetrical alkene yields two moles of an aldehyde with a molar mass of $44 \ u$. Identify the alkene.

Number of structural isomeric alkenes (molecular formula $= C_6H_{12}$) which all give $n$-hexane on hydrogenation in the presence of a metal catalyst.