$Ph-CH_2-CH(Br)-CH_2-CH_3 \xrightarrow{NaNH_2} (A)$
Total number of elimination products are (includes stereoisomers):

Given below are two statements.
Statement $I :$ The presence of weaker $\pi$-bonds makes alkenes less stable than alkanes.
Statement $II :$ The strength of the double bond is greater than that of carbon-carbon single bond.
In the light of the above statements,choose the correct answer from the options given below.

An alkene gives two moles of $HCHO$,one mole of $CO_2$,and one mole of $CH_3COCHO$ on ozonolysis. What is its structure?

Pent-$1$-ene reacts with diborane to form $X$. $X$ on oxidation using $H_2O_2$ in the presence of aqueous $NaOH$ gives $Y$. Compound $Y$ is

Which of the following reagents is used to test for the unsaturation of an alkene?

The $IUPAC$ names of some alkenes are given below. Determine the correct stability order: $A$. $2$-Methylbut-$2$-ene, $B$. $cis$-But-$2$-ene, $C$. $2,3$-Dimethylbut-$2$-ene, $D$. Prop-$1$-ene.