Question

Match the given columns:

Column 1	Column 2
Alkanes	${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+2}$
Alkenes	Marsh gas
Alkynes	${\mathrm{C}}_{\mathrm{n}}{{\mathrm{H}}_{2\mathrm{n}}}_{-2}$
Methane	Anesthetic
Ethylene	${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}}$

Answer 1

Hydrocarbons are compounds that are made up of only carbon and hydrogen. There are two types of hydrocarbons: saturated hydrocarbon and Unsaturated hydrocarbon

(A) Alkanes - (I) ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+2}$

Alkanes are saturated hydrocarbons (carbons and hydrogens are bonded by single bonds) The general formula of an alkane is: ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+2}$

(B) Alkenes - (V) ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}}$

Alkenes are unsaturated hydrocarbons (carbons are bonded by double bonds). The general formula of an alkene is ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}}$
(C) Alkynes - (III) ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}-2}$

Alkynes are unsaturated hydrocarbons (carbons are bonded by triple bond). The general formula of an alkene is ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}-2}$

(D) Methane - (II) Marsh gas

Methane $\left({\mathrm{CH}}_4\right)$ is also known as marsh gas.

(E) Ethylene - (IV) Anesthetic

Ethylene is used as an anesthetic medication.