Write the structural formula and IUPAC name of the following
i) A carboxylic acid with 4 carbon atoms
ii) An alkyne with three carbon atoms
iii) An alcohol having one carbon atom

Explanation

i] `CH_3-CH_2-CH_2-COOH`
`H-underset(H)underset(|)overset(H)overset(|)(C )-underset(H)underset(|)overset(H)overset(|)(C )-underset(H)underset(|)overset(H)overset(|)(C )-overset(O)overset(||)(C )-OH " Butanoic acid "`
ii] `CH_3-C=CH " "H-underset(H)underset(|)overset(H)overset(|)(C )-underset(H)underset(|)overset(H)overset(|)(C )-C-= C-H " Propyne"`
iii] `CH_3-OH " "H-underset(H)underset(|)overset(H)overset(|)(C )-OH " Methanol"`