Question

Match the elements of List I to their respective general condensed formula in List II.

Answer 1

$C_n{H}_{2n}+2$ belongs to the family of alkanes which has only single bond between them they only consists of Sigma bonds. ETHANE $\left(C_2{H}_6\right)$

$C_n{H}_{2n}$ it belongs to the family of alkenes which has at least one double bond between them or in ring form they also have Sigma bonds but also contain a pi bond for example in the structure of ethene $\left(C_2{H}_4\right)$we have a Pi bond.

$C_n{H}_{2n}-2$ it belong to the family of alkyne which has at least one triple bond where in which can be 2 pi bonds. For example ethyne $\left(C_2{H}_2\right)$

$C_n{H}_{2n}+1$ it belong to the family of alkyl group.

$C{H}_2$ it belong to the family of methylene group.