Explain acyclic or open chain compounds with examples.

(N/A) Definition: These compounds are also called aliphatic compounds and consist of straight or branched chain structures.
$(a)$ Examples of acyclic or straight chain compounds:
$(i)$ $CH_3CH_3$ (ethane)
(ii) $CH_3CH_2CH_3$ (propane)
(iii) $CH_3CH_2CH_2CH_3$ ($n$-butane)
(iv) $CH_3CHO$ (acetaldehyde)
$(v)$ $CH_3COOH$ (acetic acid)
(vi) $CH_3CH_2CH_2CH_2Cl$ ($1$-chlorobutane)
$(b)$ Acyclic or branched chain compounds:
$(i)$ $(CH_3)_2CHCH_3$ (isobutane)
(ii) $C(CH_3)_4$ (neopentane)
(iii) $CH_3CH(CH_3)CH_2CH_3$ (isopentane)
(iv) $CH_3CH(CH_3)CH_2Cl$ (isobutyl chloride)