How would you name the following compounds ?
`H-overset(H)overset(|)underset(H)underset(|)C-overset(H)overset(|)underset(H)underset(|)C-overset(H)overset(|)underset(H)underset(|)C-overset(H)overset(|)underset(H)underset(|)C-C-=C-H`

Explanation

i. Draw the longest carbon chain and count the number of carbon atoms in it.
`C-C-C-C-C-C`
ii. The number of carbon atoms in the chain is 6.
So, the name of the carbon chain is 'hexane'.
iii. Next, number the carbon chain in a way that carbon atoms bonded by triple bond get the lowest number.

iv. The triple bond between carbon atoms (i.e., alkyne) is the functional group present. So, the suffix used is 'yne'.
v. Therefore, the name of the carbon chain is modified by replacing the final 'ane' with 'yne'.
Thus, the name of the given compound is hex-1-yne indicating the position oftriple bond.