What can make Fermi doublets difficult to identify? One peak overlaps with sp3 CH peaks One peak is larger than the other and overlaps it One peak overlaps with sp C-H peaks The two peaks are always small Question 2 1 pts Isopentylamine has two NH peaks while N-butylacetamide has only one NH peak. Why? Methylamine is smaller than N-butylacetamide Methylamine has a higher propensity to hydrogen bond compared to N-butylacetamide Methylamine is a primary amine while N-butylacetamide is a secondary amide Methylamine is less rigid than N-butylacetamide Question 3 1 pts Overtones show up at approximately which two sets of wavenumbers? 1600 and 3000 1500 and 3200 1800 and 3400 1700 and 3100