Iso-propyl, neo-pentyl methane का सही IUPAC में नाम दीजिये ?

Explanation

`underset("Isopropyl")(CH_3-underset(CH_3)underset(|)(CH)-)" " underset("Neopentyl")(CH_3-underset(CH_3)underset(|)overset(CH_3)overset(|)C-CH_2-)" " underset("Methane")(-underset(|)overset(|)C-)`
`{:(CH_3-underset(CH_3)underset(|)(CH) - CH_2-CH_2 - underset(CH_3)underset(|)overset(CH_3)overset(|)C-CH_3),(" Isopropyl"" Methane"" Neopentyl"):}`
`{:(Coverset6H_3-underset(CH_3)underset(|)overset5(CH)-overset4(CH_2)-overset3(CH_2) -underset(CH_3)underset(|)overset(CH_3)overset(|2)C-CH_3),(" 2,2,5-Trimethylhexane"):}`[सही IUPAC नाम ]