Identify the major product of the following reaction:

What is the number of moles of $sp^3$ hybrid carbon atoms in one mole of $2-$Methylbut$-2-$ene?

Which bond is stronger between the single bond $C-C$ of an alkane and the double bond $C=C$ of an alkene?

The compound with molecular formula $C_6H_6$,which gives only one monobromo derivative and takes up four moles of hydrogen per mole for complete hydrogenation,has $................\pi$ electrons.

Which of the following will give a mixture of $cis$ and $trans-1,4-$dimethylcyclohexane upon catalytic hydrogenation?

The product of the reaction shown below will be: