The total number of methyl group present in 2 methyl pentane are: 2, 4,3,5
Dear Beauty,
2-Methly Pentane is also known as isohexane is a branched chain alkane. It molecular formula is C6H14. It is a structural isomer of hexane composed of methyl group. And as per your question we can see on the formula that the total number of methyl group present in 2 methyl pentane is 2. Hope this helps.